Awesome .NET - Curated List of Open Source Projects

Object Mapping & Serialization

protocolbuffers/protobuf

Protocol Buffers - Google's data interchange format

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Utilities & Helpers

microsoft/autogen

A programming framework for agentic AI

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API & Web Development

dotnet/aspnetcore

ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

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UI & Desktop Frameworks

AvaloniaUI/Avalonia

Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI

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Utilities & Helpers

icsharpcode/ILSpy

.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!

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.NET SDK & Platform Tools

dotnet/roslyn

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

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Data Access & ORM

DapperLib/Dapper

Dapper - a simple object mapper for .Net

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.NET SDK & Platform Tools

dotnet/runtime

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

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Networking & Protocols

netchx/netch

A simple proxy client

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UI & Desktop Frameworks

MaterialDesignInXAML/MaterialDesignInXamlToolkit

Google's Material Design in XAML & WPF, for C# & VB.Net.

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Data Access & ORM

dotnet/efcore

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

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API & Web Development

abpframework/abp

Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental in…

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API & Web Development

App-vNext/Polly

Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and …

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Office & Documents

QuestPDF/QuestPDF

QuestPDF is a modern library for PDF document generation. Its fluent C# API lets you design complex layouts with clean, readable code. Create documents using a flexible, component-based approach.

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Caching & Performance

microsoft/garnet

Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication feat…

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Console & CLI Tools

spectreconsole/spectre.console

A .NET library that makes it easier to create beautiful console applications.

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Testing & Quality

dotnet/BenchmarkDotNet

Powerful .NET library for benchmarking

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Object Mapping & Serialization

JamesNK/Newtonsoft.Json

Json.NET is a popular high-performance JSON framework for .NET

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UI & Desktop Frameworks

MudBlazor/MudBlazor

Blazor Component Library based on Material Design principles. Do more with Blazor, utilizing CSS and keeping JavaScript to a bare minimum.

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Object Mapping & Serialization

LuckyPennySoftware/AutoMapper

A convention-based object-object mapper in .NET.

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Background Jobs & Scheduling

HangfireIO/Hangfire

An easy way to perform background job processing in .NET and .NET Core applications. No Windows Service or separate process required

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API & Web Development

github/copilot-sdk

Multi-platform SDK for integrating GitHub Copilot Agent into apps and services

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API & Web Development

restsharp/RestSharp

Simple REST and HTTP API Client for .NET

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Utilities & Helpers

Humanizr/Humanizer

Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities

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Utilities & Helpers

FluentValidation/FluentValidation

A popular .NET validation library for building strongly-typed validation rules.

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Testing & Quality

bchavez/Bogus

📇 A simple fake data generator for C#, F#, and VB.NET. Based on and ported from the famed faker.js.

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API & Web Development

dotnet/yarp

A toolkit for developing high-performance HTTP reverse proxy applications.

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API & Web Development

reactiveui/refit

The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.

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UI & Desktop Frameworks

lepoco/wpfui

WPF UI provides the Fluent experience in your known and loved WPF framework. Intuitive design, themes, navigation and new immersive controls. All natively and effortlessly.

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Data Access & ORM

litedb-org/LiteDB

LiteDB - A .NET NoSQL Document Store in a single data file

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Messaging & Event-Driven

SignalR/SignalR

Incredibly simple real-time web for .NET

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Microservices & Distributed Systems

ThreeMammals/Ocelot

.NET API Gateway

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Utilities & Helpers

mxgmn/MarkovJunior

Probabilistic language based on pattern matching and constraint propagation, 153 examples

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API & Web Development

OrchardCMS/OrchardCore

Orchard Core is an open-source modular and multi-tenant application framework built with ASP.NET Core, and a content management system (CMS) built on top of that framework.

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Logging & Monitoring

serilog/serilog

Simple .NET logging with fully-structured events

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Graphics & Imaging

SixLabors/ImageSharp

📷 A modern, cross-platform, 2D Graphics library for .NET

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Background Jobs & Scheduling

elsa-workflows/elsa-core

The Workflow Engine for .NET

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Messaging & Event-Driven

MassTransit/MassTransit

Distributed Application Framework for .NET

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API & Web Development

RicoSuter/NSwag

The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript.

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Utilities & Helpers

dotnet/reactive

The Reactive Extensions for .NET

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Messaging & Event-Driven

dotnetcore/CAP

Distributed transaction solution in micro-service base on eventually consistency, also an eventbus with Outbox pattern

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Utilities & Helpers

louthy/language-ext

C# pure functional programming framework - come and get declarative!

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Background Jobs & Scheduling

quartznet/quartznet

Quartz Enterprise Scheduler .NET

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Authentication & Security

sobolevn/awesome-cryptography

A curated list of cryptography resources and links.

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Networking & Protocols

jstedfast/MailKit

A cross-platform .NET library for IMAP, POP3, and SMTP.

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Object Mapping & Serialization

MessagePack-CSharp/MessagePack-CSharp

Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]

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Data Access & ORM

microsoft/FASTER

Fast persistent recoverable log and key-value store + cache, in C# and C++.

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Testing & Quality

devlooped/moq

The most popular and friendly mocking framework for .NET

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Office & Documents

nissl-lab/npoi

a .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.

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Build & Deployment

microsoft/aspire

Aspire is the tool for code-first, extensible, observable dev and deploy.

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.NET SDK & Platform Tools

Azure/azure-sdk-for-net

This repository is for active development of the Azure SDK for .NET. For consumers of the SDK we recommend visiting our public developer docs at https://learn.microsoft.com/dotnet/azure/ or our ver…

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API & Web Development

FastEndpoints/FastEndpoints

A light-weight REST API development framework for ASP.NET 8 and newer.

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Data Access & ORM

kurrent-io/KurrentDB

KurrentDB is a database that's engineered for modern software applications and event-driven architectures. Its event-native design simplifies data modeling and preserves data integrity while the in…

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API & Web Development

ChilliCream/graphql-platform

Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Nitro the awesome Monaco based GraphQL IDE.

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Office & Documents

ClosedXML/ClosedXML

ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with the underlying OpenXM…

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Utilities & Helpers

AngleSharp/AngleSharp

👼 The ultimate angle brackets parser library parsing HTML5, MathML, SVG and CSS to construct a DOM based on the official W3C specifications.

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API & Web Development

ServiceStack/ServiceStack

Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all

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API & Web Development

domaindrivendev/Swashbuckle.AspNetCore

Swagger tools for documenting API's built on ASP.NET Core

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UI & Desktop Frameworks

Live-Charts/LiveCharts2

Beautiful, interactive charts, maps, and gauges. One API for every .NET UI framework.

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Object Mapping & Serialization

xoofx/markdig

A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET

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Microservices & Distributed Systems

dotnet/tye

Tye is a tool that makes developing, testing, and deploying microservices and distributed applications easier. Project Tye includes a local orchestrator to make developing microservices easier and …

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Authentication & Security

openiddict/openiddict-core

Flexible and versatile OAuth 2.0/OpenID Connect stack for .NET

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Caching & Performance

Cysharp/ZLinq

Zero allocation LINQ with LINQ to Span, LINQ to SIMD, and LINQ to Tree (FileSystem, JSON, GameObject, etc.) for all .NET platforms and Unity, Godot.

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Object Mapping & Serialization

MapsterMapper/Mapster

A fast, fun and stimulating object to object Mapper

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Graphics & Imaging

Shane32/QRCoder

A pure C# Open Source QR Code implementation

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Microservices & Distributed Systems

akkadotnet/akka.net

Canonical actor model implementation for .NET with local + distributed actors in C# and F#.

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Build & Deployment

dotnet/dotnet-docker

Official container images for .NET

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Console & CLI Tools

commandlineparser/commandline

The best C# command line parser that brings standardized *nix getopt style, for .NET. Includes F# support

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API & Web Development

Azure/autorest

OpenAPI (f.k.a Swagger) Specification code generator. Supports C#, PowerShell, Go, Java, Node.js, TypeScript, Python

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Build & Deployment

Azure/azure-powershell

Microsoft Azure PowerShell

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.NET SDK & Platform Tools

dotnet/skills

Repository for skills to assist AI coding agents with .NET and C#

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Utilities & Helpers

autofac/Autofac

An addictive .NET IoC container

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Object Mapping & Serialization

Cysharp/MemoryPack

Zero encoding extreme performance binary serializer for C# and Unity.

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Testing & Quality

xunit/xunit

xUnit.net is a free, open source, community-focused unit testing tool for .NET.

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Office & Documents

dotnet/Open-XML-SDK

Open XML SDK by Microsoft

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Messaging & Event-Driven

grpc/grpc-dotnet

gRPC for .NET

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Data Access & ORM

praeclarum/sqlite-net

Simple, powerful, cross-platform SQLite client and ORM for .NET

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Messaging & Event-Driven

Cysharp/MagicOnion

Unified Realtime/API framework for .NET platform and Unity.

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API & Web Development

tmenier/Flurl

Fluent URL builder and testable HTTP client for .NET

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API & Web Development

modelcontextprotocol/csharp-sdk

The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.

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API & Web Development

Xabaril/AspNetCore.Diagnostics.HealthChecks

Enterprise HealthChecks for ASP.NET Core Diagnostics Package

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Networking & Protocols

sshnet/SSH.NET

SSH.NET is a Secure Shell (SSH) library for .NET, optimized for parallelism.

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Testing & Quality

testcontainers/testcontainers-dotnet

A library to support tests with throwaway instances of Docker containers for all compatible .NET Standard versions.

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Utilities & Helpers

khellang/Scrutor

Assembly scanning and decoration extensions for Microsoft.Extensions.DependencyInjection

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Background Jobs & Scheduling

jamesmh/coravel

Near-zero config .NET library that makes advanced application features like Task Scheduling, Caching, Queuing, Event Broadcasting, and more a breeze!

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Build & Deployment

cake-build/cake

🍰 Cake (C# Make) is a cross platform build automation system.

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Object Mapping & Serialization

riok/mapperly

A .NET source generator for generating object mappings. No runtime reflection.

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Utilities & Helpers

mcintyre321/OneOf

Easy to use F#-like ~discriminated~ unions for C# with exhaustive compile time matching

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Data Access & ORM

borisdj/EFCore.BulkExtensions

Entity Framework EF Core efcore Bulk Batch Extensions with BulkCopy in .Net for Insert Update Delete Read (CRUD), Truncate and SaveChanges operations on SQL Server, PostgreSQL, MySQL, SQLite, Oracle

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Graphics & Imaging

dlemstra/Magick.NET

The .NET library for ImageMagick

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Utilities & Helpers

scriban/scriban

A fast, powerful, safe and lightweight scripting language and engine for .NET

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File & Storage

icsharpcode/SharpZipLib

#ziplib is a Zip, GZip, Tar and BZip2 library written entirely in C# for the .NET platform.

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Testing & Quality

thomhurst/TUnit

A modern, fast and flexible .NET testing framework

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Testing & Quality

hardkoded/puppeteer-sharp

Headless Chrome .NET API

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Caching & Performance

ZiggyCreatures/FusionCache

FusionCache is an easy to use, fast and robust hybrid cache with advanced resiliency features.

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Utilities & Helpers

morelinq/MoreLINQ

Extensions to LINQ to Objects

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API & Web Development

microsoft/kiota

OpenAPI based HTTP Client code generator

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Utilities & Helpers

mathnet/mathnet-numerics

Math.NET Numerics

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Build & Deployment

nuke-build/nuke

🏗 The AKEless Build System for C#/.NET

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Logging & Monitoring

open-telemetry/opentelemetry-dotnet

The OpenTelemetry .NET Client

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Data Access & ORM

npgsql/npgsql

Npgsql is the .NET data provider for PostgreSQL.

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Console & CLI Tools

dotnet/command-line-api

Command line parsing, invocation, and rendering of terminal output.

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Messaging & Event-Driven

martinothamar/Mediator

A high performance implementation of Mediator pattern in .NET using source generators.

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Data Access & ORM

elastic/elasticsearch-net

This strongly-typed, client library enables working with Elasticsearch. It is the official client maintained and supported by Elastic.

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API & Web Development

TelegramBots/Telegram.Bot

.NET Client for Telegram Bot API

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Authentication & Security

skoruba/IdentityServer4.Admin

The administration for the IdentityServer4 and Asp.Net Core Identity

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Background Jobs & Scheduling

Arcenox-co/TickerQ

TickerQ is a fast, reflection-free background task scheduler for .NET built with source generators, EF Core integration, cron + time-based execution, and a real-time dashboard.

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Utilities & Helpers

icedland/iced

Blazing fast and correct x86/x64 disassembler, assembler, decoder, encoder for Rust, .NET, Java, Python, Lua

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Office & Documents

mini-software/MiniExcel

Lightweight, fast and simple cross-platform .NET processing tool for importing and exporting spreadsheet documents

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Data Access & ORM

fluentmigrator/fluentmigrator

Fluent migrations framework for .NET

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Console & CLI Tools

mayuki/Cocona

Micro-framework for .NET console application. Cocona makes it easy and fast to build console applications on .NET.

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Testing & Quality

VerifyTests/Verify

Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.

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Testing & Quality

dotnet/roslynator

Roslynator is a set of code analysis tools for C#, powered by Roslyn.

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Utilities & Helpers

wolfgarbe/SymSpell

SymSpell: 1 million times faster spelling correction & fuzzy search through Symmetric Delete spelling correction algorithm

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Build & Deployment

libgit2/libgit2sharp

Git + .NET = ❤

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Data Access & ORM

JasperFx/marten

.NET Transactional Document DB and Event Store on PostgreSQL

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Testing & Quality

shouldly/shouldly

Should testing for .NET—the way assertions should be!

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Networking & Protocols

robinrodricks/FluentFTP

An FTP and FTPS client for .NET & .NET Standard, optimized for speed. Provides extensive FTP commands, File uploads/downloads, SSL/TLS connections, Automatic directory listing parsing, File hashing…

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Authentication & Security

ullmark/hashids.net

A small .NET package to generate YouTube-like hashes from one or many numbers. Use hashids when you do not want to expose your database ids to the user.

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Console & CLI Tools

waf/CSharpRepl

A command line C# REPL with syntax highlighting – explore the language, libraries and nuget packages interactively.

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Utilities & Helpers

ardalis/GuardClauses

A simple package with guard clause extensions.

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Data Access & ORM

linq2db/linq2db

Linq to database provider.

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Testing & Quality

adamsitnik/awesome-dot-net-performance

A curated list of awesome .NET Performance books, courses, trainings, conference talks, blogs and most inspiring open source contributors. Inspired by awesome-... stuff.

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Data Access & ORM

mongodb/mongo-csharp-driver

The Official C# .NET Driver for MongoDB

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API & Web Development

lukencode/FluentEmail

All in one email sender for .NET. Supports popular senders (SendGrid, MailGun, etc) and Razor templates.

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API & Web Development

dotnet/aspnet-api-versioning

Provides a set of libraries which add service API versioning to ASP.NET Web API, OData with ASP.NET Web API, and ASP.NET Core.

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.NET SDK & Platform Tools

dotnet/interactive

.NET Interactive combines the power of .NET with many other languages to create notebooks, REPLs, and embedded coding experiences. Share code, explore data, write, and learn across your apps in way…

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API & Web Development

ardalis/ApiEndpoints

A project for supporting API Endpoints in ASP.NET Core web applications.

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.NET SDK & Platform Tools

dotnet/extensions

This repository contains a suite of libraries that provide facilities commonly needed when creating production-ready applications.

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API & Web Development

stefanprodan/AspNetCoreRateLimit

ASP.NET Core rate limiting middleware

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Testing & Quality

coverlet-coverage/coverlet

Cross platform code coverage for .NET

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Networking & Protocols

chronoxor/NetCoreServer

Ultra fast and low latency asynchronous socket server & client C# .NET Core library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution

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API & Web Development

Azure/azure-rest-api-specs

The source for REST API specifications for Microsoft Azure.

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Testing & Quality

danielpalme/ReportGenerator

ReportGenerator converts coverage reports generated by coverlet, OpenCover, dotCover, Visual Studio, NCover, Cobertura, JaCoCo, Clover, gcov or lcov into human readable reports in various formats.

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API & Web Development

domaindrivendev/Swashbuckle.WebApi

Seamlessly adds a swagger to WebApi projects!

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Messaging & Event-Driven

EasyNetQ/EasyNetQ

An easy to use .NET API for RabbitMQ

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.NET SDK & Platform Tools

dotnet/try

Try .NET provides developers and content authors with tools to create interactive experiences.

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Machine Learning & AI

betalgo/openai

.NET library for the OpenAI service API by Betalgo Ranul

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Testing & Quality

jbogard/Respawn

Intelligent database cleaner for integration tests

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.NET SDK & Platform Tools

dotnet-script/dotnet-script

Run C# scripts from the .NET CLI.

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Utilities & Helpers

nodatime/nodatime

A better date and time API for .NET

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Testing & Quality

microsoft/playwright-dotnet

.NET version of the Playwright testing and automation library.

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Testing & Quality

nsubstitute/NSubstitute

A friendly substitute for .NET mocking libraries.

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Utilities & Helpers

angularsen/UnitsNet

Makes life working with units of measurement just a little bit better.

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.NET SDK & Platform Tools

dotnet/macios

.NET for iOS, Mac Catalyst, macOS, and tvOS provide open-source bindings of the Apple SDKs for use with .NET managed languages such as C#

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API & Web Development

octokit/octokit.net

A GitHub API client library for .NET

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Testing & Quality

DotNetAnalyzers/StyleCopAnalyzers

An implementation of StyleCop rules using the .NET Compiler Platform

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Object Mapping & Serialization

aaubry/YamlDotNet

YamlDotNet is a .NET library for YAML

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Utilities & Helpers

zzzprojects/html-agility-pack

Html Agility Pack (HAP) is a free and open-source HTML parser written in C# to read/write DOM and supports plain XPATH or XSLT. It is a .NET code library that allows you to parse "out of the web" H…

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Caching & Performance

Cysharp/ZString

Zero Allocation StringBuilder for .NET and Unity.

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Background Jobs & Scheduling

fluentscheduler/FluentScheduler

Automated job scheduler with fluent interface for the .NET platform.

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Machine Learning & AI

openai/openai-dotnet

The official .NET library for the OpenAI API

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Messaging & Event-Driven

rebus-org/Rebus

🚌 Simple and lean service bus implementation for .NET

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Testing & Quality

nunit/nunit

NUnit Framework

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Data Access & ORM

DbUp/DbUp

DbUp is a .NET library that helps you to deploy changes to SQL Server databases. It tracks which SQL scripts have been run already, and runs the change scripts that are needed to get your database …

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File & Storage

adamhathcock/sharpcompress

SharpCompress is a fully managed C# library to deal with many compression types and formats.

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Microservices & Distributed Systems

eventflow/EventFlow

Async/await first CQRS+ES and DDD framework for .NET

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Authentication & Security

aspnet-contrib/AspNet.Security.OAuth.Providers

OAuth 2.0 social authentication providers for ASP.NET Core

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Data Access & ORM

ErikEJ/EFCorePowerTools

Entity Framework Core Power Tools - reverse engineering, migrations and model visualization in Visual Studio & CLI

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Office & Documents

UglyToad/PdfPig

Read and extract text and other content from PDFs in C# (port of PDFBox)

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Messaging & Event-Driven

BrighterCommand/Brighter

A framework for building messaging apps with .NET and C#.

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Graphics & Imaging

charlesw/tesseract

A .Net wrapper for tesseract-ocr

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API & Web Development

CarterCommunity/Carter

Carter is framework that is a thin layer of extension methods and functionality over ASP.NET Core allowing code to be more explicit and most importantly more enjoyable.

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Utilities & Helpers

ardalis/SmartEnum

A base class for quickly and easily creating strongly typed enum replacements in C#.

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API & Web Development

OrchardCMS/Orchard

Orchard is a free, open source, community-focused Content Management System built on the ASP.NET MVC platform. Check out the next generation of this software built on ASP.NET Core: https://github.c…

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Build & Deployment

dotnet/Docker.DotNet

🐳 .NET (C#) Client Library for Docker API

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Utilities & Helpers

apache/lucenenet

Apache Lucene.NET is an open-source full-text search library written in C#, ported from the Apache Lucene project.

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Logging & Monitoring

castleproject/Core

Castle Core, including Castle DynamicProxy, Logging Services and DictionaryAdapter

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Testing & Quality

belav/csharpier

CSharpier is an opinionated code formatter for c#.

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Messaging & Event-Driven

rabbitmq/rabbitmq-dotnet-client

RabbitMQ .NET client for .NET Standard 2.0+ and .NET 4.6.2+

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Console & CLI Tools

natemcmaster/CommandLineUtils

Command line parsing and utilities for .NET

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Microservices & Distributed Systems

JasperFx/wolverine

Supercharged .NET server side development!

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Office & Documents

dotnetcore/Magicodes.IE

Import and export general library, support Dto import and export, template export, fancy export and dynamic export, support Excel, Csv, Word, Pdf and Html.

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Testing & Quality

Sergio0694/PolySharp

PolySharp provides generated, source-only polyfills for C# language features, to easily use all runtime-agnostic features downlevel. Add a reference, set your C# version to latest and have fun! 🚀

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Console & CLI Tools

Cysharp/ConsoleAppFramework

Zero Dependency, Zero Overhead, Zero Reflection, Zero Allocation, AOT Safe CLI Framework powered by C# Source Generator.

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Authentication & Security

jwt-dotnet/jwt

Jwt.Net, a JWT (JSON Web Token) implementation for .NET

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Caching & Performance

dotnetcore/EasyCaching

💥 EasyCaching is an open source caching library that contains basic usages and some advanced usages of caching which can help us to handle caching more easier!

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Graphics & Imaging

rosenbjerg/FFMpegCore

A .NET FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your C# applications

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Logging & Monitoring

prometheus-net/prometheus-net

.NET library to instrument your code with Prometheus metrics

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Utilities & Helpers

error-or/error-or

A simple, fluent discriminated union of an error or a result.

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API & Web Development

jstedfast/MimeKit

A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.

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Utilities & Helpers

dotnet/dotNext

Next generation API for .NET

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Console & CLI Tools

dotnet/format

Home for the dotnet-format command

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Messaging & Event-Driven

Cysharp/MessagePipe

High performance in-memory/distributed messaging pipeline for .NET and Unity.

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Authentication & Security

bcgit/bc-csharp

BouncyCastle.NET Cryptography Library (Mirror)

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Networking & Protocols

sipsorcery-org/sipsorcery

A WebRTC, SIP and VoIP library for C# and .NET. Designed for real-time communications apps.

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Data Access & ORM

mikependon/RepoDB

A hybrid ORM library for .NET.

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Utilities & Helpers

TheCodeTraveler/AsyncAwaitBestPractices

Extensions for System.Threading.Tasks.Task and System.Threading.Tasks.ValueTask

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Testing & Quality

FakeItEasy/FakeItEasy

The easy mocking library for .NET

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Utilities & Helpers

TylerBrinkley/Enums.NET

Enums.NET is a high-performance type-safe .NET enum utility library

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Data Access & ORM

npgsql/efcore.pg

Entity Framework Core provider for PostgreSQL

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Data Access & ORM

Cysharp/MasterMemory

Source Generator based Embedded Typed Readonly In-Memory Document Database for .NET and Unity.

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Data Access & ORM

tmsmith/Dapper-Extensions

Dapper Extensions is a small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs. For more advanced querying scenarios, Dapper Extensions pr…

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Utilities & Helpers

videolan/libvlcsharp

Cross-platform .NET/Mono bindings for LibVLC

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.NET SDK & Platform Tools

dotnetcore/AspectCore-Framework

AspectCore is an AOP-based cross platform framework for .NET Standard.

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Utilities & Helpers

sebastienros/fluid

Fluid is an open-source .NET template engine based on the Liquid template language.

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Testing & Quality

BenMorris/NetArchTest

A fluent API for .Net that can enforce architectural rules in unit tests.

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Utilities & Helpers

andrewlock/StronglyTypedId

A Rosyln-powered generator for strongly-typed IDs

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Logging & Monitoring

Cysharp/ZLogger

Zero Allocation Text/Structured Logger for .NET with StringInterpolation and Source Generator, built on top of a Microsoft.Extensions.Logging.

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Graphics & Imaging

m4rs-mt/ILGPU

ILGPU JIT Compiler for high-performance .Net GPU programs

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Data Access & ORM

dotnet/EntityFramework.Docs

Documentation for Entity Framework Core and Entity Framework 6

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Data Access & ORM

Giorgi/EntityFramework.Exceptions

Strongly typed exceptions for Entity Framework Core. Supports SQLServer, PostgreSQL, SQLite, Oracle and MySql.

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Console & CLI Tools

RazorConsole/RazorConsole

Build agentic TUI applications with .NET Razor and Spectre.Console

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.NET SDK & Platform Tools

NetTopologySuite/NetTopologySuite

A .NET GIS solution that is fast and reliable for the .NET platform.

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Build & Deployment

dotnet-outdated/dotnet-outdated

A .NET Core global tool to display and update outdated NuGet packages in a project

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File & Storage

bezzad/Downloader

Fast, cross-platform and reliable multipart downloader with asynchronous progress events for .NET applications.

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Authentication & Security

natemcmaster/LettuceEncrypt

Free, automatic HTTPS certificate generation for ASP.NET Core web apps

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Testing & Quality

wiremock/WireMock.Net

WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on WireMock Java, but extended and different functional…

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API & Web Development

aws/aws-lambda-dotnet

Libraries, samples and tools to help .NET Core developers develop AWS Lambda functions.

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Utilities & Helpers

Cysharp/Ulid

Fast .NET C# Implementation of ULID for .NET and Unity.

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Data Access & ORM

NEventStore/NEventStore

A persistence agnostic Event Store for .NET

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API & Web Development

Finbuckle/Finbuckle.MultiTenant

MultiTenant is an open source multi-tenancy library for modern .NET created and maintained by Finbuckle LLC.

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API & Web Development

microsoft/OpenAPI.NET

The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents from the model.

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UI & Desktop Frameworks

amwx/FluentAvalonia

Control library focused on fluent design and bringing more WinUI controls into Avalonia

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API & Web Development

stripe/stripe-dotnet

Stripe.net is a sync/async .NET 4.6.1+ client, and a portable class library for stripe.com.

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Authentication & Security

AzureAD/microsoft-authentication-library-for-dotnet

Microsoft Authentication Library (MSAL) for .NET

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API & Web Development

Azure/data-api-builder

Data API builder provides modern REST, GraphQL endpoints and MCP tools to your Azure Databases and on-prem stores.

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File & Storage

nietras/Sep

World's Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible with bla…

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Utilities & Helpers

Handlebars-Net/Handlebars.Net

A real .NET Handlebars engine

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API & Web Development

Azure/azure-functions-core-tools

Command line tools for Azure Functions

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Authentication & Security

passwordless-lib/fido2-net-lib

Passkeys, FIDO2 and WebAuthn .NET library.

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Testing & Quality

mariotoffia/FluentDocker

Use docker/podman, compose local and remote via a FluentAPI

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Background Jobs & Scheduling

dahall/TaskScheduler

Provides a .NET wrapper for the Windows Task Scheduler. It aggregates the multiple versions, provides an editor and allows for localization.

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Build & Deployment

imgbot/Imgbot

An Azure Function solution to crawl through all of your image files in GitHub and losslessly compress them. This will make the file size go down, but leave the dimensions and quality untouched. Onc…

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Testing & Quality

TNG/ArchUnitNET

A C# architecture test library to specify and assert architecture rules in C# for automated testing.

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Authentication & Security

apache/casbin-Casbin.NET

An authorization library that supports access control models like ACL, RBAC, ABAC in .NET (C#)

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Authentication & Security

kspearrin/Otp.NET

A .NET implementation of TOTP and HOTP for things like two-factor authentication codes.

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Utilities & Helpers

RobThree/IdGen

Twitter Snowflake-alike ID generator for .Net

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API & Web Development

Biarity/Sieve

⚗️ Clean & extensible Sorting, Filtering, and Pagination for ASP.NET Core

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Utilities & Helpers

amantinband/throw

A simple, fluent, extensible, and fully customizable library for throwing exceptions for projects using .NET 6+

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Utilities & Helpers

mmanela/diffplex

DiffPlex is Netstandard 2.0+ C# library to generate textual diffs.

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Object Mapping & Serialization

json-everything/json-everything

System.Text.Json-based support for all of your JSON needs.

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Office & Documents

ststeiger/PdfSharpCore

Port of the PdfSharp library to .NET Core - largely removed GDI+ (only missing GetFontData - which can be replaced with freetype2)

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.NET SDK & Platform Tools

dotnet/modernize-dotnet

No description available

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Microservices & Distributed Systems

dapr/dotnet-sdk

Dapr SDK for .NET

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Console & CLI Tools

shadawck/awesome-cli-frameworks

Collection of tools to build beautiful command line interface in different languages

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Object Mapping & Serialization

Tim-Maes/Facet

Generate DTOs, mappings, constructors and LINQ projections from your domain models.

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.NET SDK & Platform Tools

actions/setup-dotnet

Set up your GitHub Actions workflow with a specific version of the .NET core sdk

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Background Jobs & Scheduling

HangfireIO/Cronos

A fully-featured .NET library for working with Cron expressions. Built with time zones in mind and intuitively handles daylight saving time transitions

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API & Web Development

microsoft/FeatureManagement-Dotnet

Microsoft.FeatureManagement provides standardized APIs for enabling feature flags within applications. Utilize this library to secure a consistent experience when developing applications that use p…

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Testing & Quality

meziantou/Meziantou.Analyzer

A powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices—helping developers and AI write more reliable code.

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.NET SDK & Platform Tools

dotnet/try-convert

Helping .NET developers port their projects to .NET Core!

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Utilities & Helpers

sqids/sqids-dotnet

Official .NET port of Sqids. Generate short unique IDs from numbers.

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Utilities & Helpers

alirezanet/Gridify

Easy and optimized way to apply Filtering, Sorting, and Pagination using text-based data.

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Testing & Quality

SergeyTeplyakov/ErrorProne.NET

Set of roslyn-based analyzers for catching common C# errors (inspired by Google's error-prone)

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API & Web Development

canton7/RestEase

Easy-to-use typesafe REST API client library for .NET Standard 1.1 and .NET Framework 4.5 and higher, which is simple and customisable. Inspired by Refit

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Build & Deployment

wixtoolset/wix

WiX Toolset Code

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Utilities & Helpers

bradymholt/cron-expression-descriptor

A .NET library that converts cron expressions into human readable descriptions.

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Utilities & Helpers

benjamin-hodgson/Pidgin

A lightweight and fast parsing library for C#.

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Utilities & Helpers

dotliquid/dotliquid

.NET Port of Tobias Lütke's Liquid template language.

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Utilities & Helpers

KirillOsenkov/RoslynQuoter

Roslyn tool that for a given C# program shows syntax tree API calls to construct its syntax tree

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Testing & Quality

dotnet/crank

Benchmarking infrastructure for applications

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Graphics & Imaging

drewnoakes/metadata-extractor-dotnet

Extracts Exif, IPTC, XMP, ICC and other metadata from image, video and audio files

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Testing & Quality

microsoft/testfx

This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

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Console & CLI Tools

khalidabuhakmeh/ConsoleTables

Print out a nicely formatted table in a console application C#

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Build & Deployment

adamralph/minver

🏷 Minimalist .NET packages, developed by humans, for versioning software or content using Git tags.

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Authentication & Security

BcryptNet/bcrypt.net

BCrypt.Net - Bringing updates to the original bcrypt package

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Background Jobs & Scheduling

atifaziz/NCrontab

Crontab for .NET

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Caching & Performance

VahidN/EFCoreSecondLevelCacheInterceptor

EF Core Second Level Cache Interceptor

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Data Access & ORM

efcore/EFCore.NamingConventions

Entity Framework Core plugin to apply naming conventions to table and column names (e.g. snake_case)

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Utilities & Helpers

mcintyre321/ValueOf

Deal with Primitive Obsession - define ValueObjects in a single line (of C#).

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File & Storage

xoofx/zio

A cross-platform abstract/virtual filesystem framework with many built-ins filesystems for .NET

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Localization & Internationalization

twcclegg/libphonenumber-csharp

Offical C# port of https://github.com/googlei18n/libphonenumber

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Build & Deployment

prom3theu5/aspirational-manifests

Handle deployments of .NET Aspire AppHost Projects

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Data Access & ORM

lecaillon/Evolve

Database migration tool for .NET and .NET Core projects. Inspired by Flyway.

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Localization & Internationalization

mattjohnsonpint/TimeZoneConverter

Lightweight libraries to convert between IANA, Windows, Rails, and POSIX time zones.

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Testing & Quality

machine/machine.specifications

Machine.Specifications is a Context/Specification framework for .NET that removes language noise and simplifies tests.

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Office & Documents

mganss/ExcelMapper

An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods.

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Utilities & Helpers

MatthewKing/DeviceId

A simple library providing functionality to generate a 'device ID' that can be used to uniquely identify a computer.

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Networking & Protocols

MichaCo/DnsClient.NET

DnsClient.NET is a simple yet very powerful and high performant open source library for the .NET Framework to do DNS lookups

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Object Mapping & Serialization

msgpack/msgpack-cli

MessagePack implementation for Common Language Infrastructure / msgpack.org[C#]

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Machine Learning & AI

curiosity-ai/catalyst

🚀 Catalyst is a C# Natural Language Processing library built for speed. Inspired by spaCy's design, it brings pre-trained models, out-of-the box support for training word and document embeddings, a…

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Build & Deployment

alirezanet/Husky.Net

Lint your commit messages, run tests, format or analyze code, and perform any other checks automatically when you commit or push. 🚀

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.NET SDK & Platform Tools

jonsequitur/dotnet-repl

A polyglot REPL built on .NET Interactive

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API & Web Development

khellang/Middleware

Various ASP.NET Core middleware

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Build & Deployment

NuGet/NuGet.Client

Client Tools for NuGet - including Visual Studio extensions, command line tools, and msbuild support. (Open issues on https://github.com/nuget/home/issues)

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Utilities & Helpers

dotnet/Scaffolding

Code generators to speed up development.

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File & Storage

MiloszKrajewski/K4os.Compression.LZ4

LZ4/LH4HC compression for .NET Standard 1.6/2.0 (formerly known as lz4net)

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Networking & Protocols

doghappy/socket.io-client-csharp

socket.io-client implemention for .NET

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Graphics & Imaging

barnhill/barcodelib

C# Barcode Image Generation Library

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API & Web Development

microsoftgraph/msgraph-sdk-dotnet

Microsoft Graph Client Library for .NET!

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Caching & Performance

Cysharp/SimdLinq

Drop-in replacement of LINQ aggregation operations extremely faster with SIMD.

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Utilities & Helpers

ZacharyPatten/Towel

Throw in the towel.

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Build & Deployment

xoofx/dotnet-releaser

Easily build, run tests and coverage, cross-compile, package and publish your .NET library or application to NuGet and GitHub.

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Logging & Monitoring

getsentry/sentry-dotnet

Sentry SDK for .NET

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Testing & Quality

reqnroll/Reqnroll

Open-source Cucumber-style BDD test automation framework for .NET.

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Console & CLI Tools

dotnet/cli-lab

A guided tool will be provided to enable the controlled clean up of a system such that only the desired versions of the Runtime and SDKs remain.

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Authentication & Security

Aguafrommars/TheIdServer

OpenID/Connect, OAuth2, WS-Federation and SAML 2.0 server based on Duende IdentityServer and ITFoxtec Identity SAML 2.0 with its admin UI

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Networking & Protocols

Marfusios/websocket-client

🔧 .NET/C# websocket client library

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File & Storage

tusdotnet/tusdotnet

.NET server implementation of the Tus protocol for resumable file uploads. Read more at https://tus.io

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Testing & Quality

fixie/fixie

Ergonomic Testing for .NET

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Graphics & Imaging

saucecontrol/PhotoSauce

MagicScaler high-performance, high-quality image processing pipeline for .NET

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Utilities & Helpers

aloneguid/config

⚙ Config.Net - the easiest configuration framework for .NET developers. No BS.

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Graphics & Imaging

wieslawsoltes/Svg.Skia

An SVG rendering library.

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Networking & Protocols

dotnet/Nerdbank.Streams

Specialized .NET Streams and pipes for full duplex in-proc communication, web sockets, and multiplexing

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Office & Documents

datalab-to/pdftext

Extract structured text from pdfs quickly

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Authentication & Security

BLAKE2/BLAKE2

BLAKE2 official implementations

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Build & Deployment

Webreaper/CentralisedPackageConverter

Converts a project to use Centralised Package Management

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Office & Documents

sveinungf/spreadcheetah

SpreadCheetah is a high-performance .NET library for generating spreadsheet (Microsoft Excel XLSX) files.

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Data Access & ORM

Giorgi/EFCore.Visualizer

Entity Framework Core queries debugger visualizer.

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Utilities & Helpers

Jinjinov/Hardware.Info

Battery, BIOS, CPU - processor, storage drive, keyboard, RAM - memory, monitor, motherboard, mouse, NIC - network adapter, printer, sound card - audio card, graphics card - video card. Hardware.Inf…

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Data Access & ORM

Giorgi/DuckDB.NET

Bindings and ADO.NET Provider for DuckDB

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API & Web Development

RehanSaeed/Schema.NET

Schema.org objects turned into strongly typed C# POCO classes for use in .NET. All classes can be serialized into JSON/JSON-LD and XML, typically used to represent structured data in the head secti…

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Build & Deployment

Buildalyzer/Buildalyzer

A utility to perform design-time builds of .NET projects without having to think too hard about it.

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File & Storage

minio/minio-dotnet

MinIO Client SDK for .NET

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Utilities & Helpers

phatboyg/NewId

A sequential id generator that works across nodes with no collisions

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API & Web Development

graphql-dotnet/graphql-client

A GraphQL Client for .NET Standard

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Testing & Quality

cybermaxs/awesome-analyzers

A curated list of .NET Compiler Platform ("Roslyn") diagnostic analyzers and code fixes. Everyone can contribute here!

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Testing & Quality

themidnightgospel/Imposter

Mocking library with the perfect balance of Performance and Intuitive API

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Authentication & Security

myloveCc/NETCore.Encrypt

NETCore encrypt and decrypt tool，Include aes，des，rsa，md5，sha1，sha256，sha384，sha512

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Utilities & Helpers

seesharper/LightInject

An ultra lightweight IoC container

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Office & Documents

donnytian/Npoi.Mapper

Use this tool to import or export data with Excel file. The tool is a convention based mapper between strong typed object and Excel data via NPOI.

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Utilities & Helpers

CommunityToolkit/Aspire

A community project with additional components and extensions for Aspire

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Authentication & Security

DuendeArchive/IdentityModel.OidcClient

Certified C#/NetStandard OpenID Connect Client Library for native mobile/desktop Applications (RFC 8252)

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Data Access & ORM

yangzhongke/Zack.EFCore.Batch

Deleting or Updating multiple records from a LINQ Query in a SQL statement without loading entities

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.NET SDK & Platform Tools

aws/dotnet

GitHub home for .NET development on AWS

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Utilities & Helpers

omar/ByteSize

ByteSize is a utility class that makes byte size representation in code easier by removing ambiguity of the value being represented. ByteSize is to bytes what System.TimeSpan is to time.

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API & Web Development

vivet/GoogleApi

C# .NET Core Google Api (Maps, Places, Roads, Search, Translate). Supports all endpoints and requests / responses.

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Object Mapping & Serialization

jamescourtney/FlatSharp

Fast, idiomatic C# implementation of Flatbuffers

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Logging & Monitoring

DataDog/dd-trace-dotnet

.NET Client Library for Datadog APM

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Utilities & Helpers

codeyu/nanoid-net

.NET implementation of ai's nanoid

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Utilities & Helpers

tonerdo/dotnet-env

A .NET library to load environment variables from .env files

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Authentication & Security

rajanadar/VaultSharp

A comprehensive cross-platform .NET Library for HashiCorp's Vault, a secret management tool

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Messaging & Event-Driven

LGouellec/streamiz

.NET Stream Processing Library for Apache Kafka 🚀

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Build & Deployment

bagetter/BaGetter

A lightweight NuGet and symbol server

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Graphics & Imaging

kleisauke/net-vips

.NET binding for libvips.

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Data Access & ORM

Eventuous/eventuous

Event Sourcing library for .NET

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Logging & Monitoring

serilog/serilog-settings-configuration

A Serilog configuration provider that reads from Microsoft.Extensions.Configuration

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Build & Deployment

spectresystems/snitch

A tool that help you find duplicate transitive package references.

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Testing & Quality

AndreyAkinshin/perfolizer

Performance analysis toolkit

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Utilities & Helpers

drewnoakes/figgle

ASCII banner generation for .NET

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Utilities & Helpers

HtmlTags/htmltags

Simple object model for generating HTML

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Office & Documents

EvotecIT/OfficeIMO

Fast and easy to use cross-platform .NET library that creates or modifies Microsoft Word (DocX) and later also Excel (XLSX) files without installing any software. Library is based on Open XML SDK

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Office & Documents

Sicos1977/ChromiumHtmlToPdf

Convert HTML to PDF with a Chromium based browser

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Data Access & ORM

linq2db/linq2db.EntityFrameworkCore

Bring power of Linq To DB to Entity Framework Core projects

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.NET SDK & Platform Tools

RicoSuter/DNT

DNT (DotNetTools): Command line tools to manage .NET projects and solutions.

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Build & Deployment

rafaelfgx/DotNetCore

.NET 10 Nuget Packages

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Build & Deployment

rr-wfm/MSBuild.Sdk.SqlProj

An MSBuild SDK that provides similar functionality to SQL Server Data Tools (.sqlproj) projects

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Console & CLI Tools

managedcode/dotnet-skills

Installable .NET skill catalog and CLI for Codex, Claude Code, GitHub Copilot, and Gemini.

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Data Access & ORM

microsoft/DacFx

DacFx, SqlPackage, and other SQL development libraries enable declarative database development and database portability across SQL versions and environments. Share feedback here on dacpacs, bacpacs…

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File & Storage

robinrodricks/FluentStorage

A polycloud .NET cloud storage abstraction layer. Provides a single unified polycloud API across 15+ clouds for Object manipulation, File uploads/downloads, File streaming/seeking, Object metadata,…

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Utilities & Helpers

MarkPflug/Sylvan

A collection of .NET libraries.

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Background Jobs & Scheduling

hangfire-postgres/Hangfire.PostgreSql

PostgreSql Storage Provider for Hangfire

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Authentication & Security

ektrah/nsec

A modern and easy-to-use cryptographic library for .NET based on libsodium

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Data Access & ORM

EFNext/EntityFrameworkCore.Projectables

Project over properties and functions in your linq queries

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Logging & Monitoring

Abc-Arbitrage/ZeroLog

A high-performance, zero-allocation .NET logging library.

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Object Mapping & Serialization

manuc66/JsonSubTypes

Discriminated Json Subtypes Converter implementation for .NET

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Office & Documents

ShapeCrawler/ShapeCrawler

PowerPoint .NET library for reading, modifying, and generating PPTX presentations without Microsoft Office

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API & Web Development

christianhelle/refitter

A tool for generating Refit interfaces and contracts from OpenAPI (Swagger) specifications

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API & Web Development

totpero/DeviceDetector.NET

The Universal Device Detection library will parse any User Agent and detect the browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand and model.

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Authentication & Security

alexhiggins732/IdentityServer8

DotNet 8, Identity, OpenID Connect and OAuth 2.0 Framework for ASP.NET Core Identity Server 8

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Data Access & ORM

mongodb/mongo-efcore-provider

MongoDB Entity Framework Core Provider

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Graphics & Imaging

manuelbl/QrCodeGenerator

QR Code Generator for .NET

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Testing & Quality

RickStrahl/WestWindWebSurge

Quick and easy URL and Load Testing for your Web applications on Windows

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Utilities & Helpers

RobThree/NUlid

.Net ULID implementation

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Utilities & Helpers

DamianEdwards/MiniValidation

A minimalist validation library for .NET built atop the existing features in `System.ComponentModel.DataAnnotations` namespace

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API & Web Development

Azure/azure-functions-openapi-extension

This extension provides an Azure Functions app with Open API capability for better discoverability to consuming parties

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File & Storage

mjebrahimi/EasyCompressor

⚡An Easy-to-Use and Optimized compression library for .NET that unified several compression algorithms including LZ4, Snappy, Zstd, LZMA, Brotli, GZip, ZLib, and Deflate. This library aids in Impro…

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Data Access & ORM

efcore/EFCore.CheckConstraints

An Entity Framework Core plugin to automatically add check constraints in various situations

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Graphics & Imaging

Tagliatti/NetBarcode

Barcode generation library written in C# and .NET Standard 2

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Testing & Quality

cucumber/gherkin

A parser and compiler for the Gherkin language.

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Logging & Monitoring

serilog/serilog-sinks-file

Write Serilog events to files in text and JSON formats, optionally rolling on time or size

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Utilities & Helpers

HavenDV/H.Pipes

A simple, easy to use, strongly-typed, async wrapper around .NET named pipes.

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Data Access & ORM

6bee/Remote.Linq

Simply LINQ your remote resources...

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Console & CLI Tools

minhhungit/ConsoleTableExt

A fluent library to print out a nicely formatted table in a console application C#

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Caching & Performance

Cysharp/NativeMemoryArray

Utilized native-memory backed array for .NET and Unity - over the 2GB limitation and support the modern API(IBufferWriter, ReadOnlySequence, scatter/gather I/O, etc...).

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API & Web Development

meilisearch/meilisearch-dotnet

.NET client for Meilisearch

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Testing & Quality

CollinAlpert/Lombok.NET

.NET adaptation for Java's Lombok using Source Generators.

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Networking & Protocols

tpeczek/Lib.AspNetCore.ServerSentEvents

Lib.AspNetCore.ServerSentEvents is a library which provides Server-Sent Events (SSE) support for ASP.NET Core

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Utilities & Helpers

Marusyk/grok.net

.NET implementation of the grok 📝

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Build & Deployment

mjebrahimi/Awesome-Nuget-Packages

📦 A curated list of awesome and best Nuget packages sorted by most popular ones.

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Utilities & Helpers

neilharvey/FileSignatures

A small library for detecting the type of a file based on header signature (also known as magic number).

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Testing & Quality

martincostello/xunit-logging

Logging extensions for xunit

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Logging & Monitoring

destructurama/attributed

Use attributes to control how complex types are logged to Serilog.

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Utilities & Helpers

falahati/WindowsFirewallHelper

A class library to manage the Windows Firewall as well as adding your program to the Windows Firewall Exception list.

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Logging & Monitoring

serilog-mssql/serilog-sinks-mssqlserver

A Serilog sink that writes events to Microsoft SQL Server and Azure SQL

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Utilities & Helpers

bolorundurowb/dotenv.net

🔐 A library to read .env files in a .NET Core environment

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Caching & Performance

Cysharp/NativeCompressions

NativeCompressions is the native binding and high-level API of ZStandard, LZ4 and OpenZL compression library for .NET and Unity.

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Data Access & ORM

pgvector/pgvector-dotnet

pgvector support for .NET (C#, F#, and Visual Basic)

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Networking & Protocols

Cysharp/KcpTransport

KcpTransport is a Pure C# implementation of RUDP for high-performance real-time network communication

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Logging & Monitoring

JamesNK/aspnetcore-grafana

Grafana dashboards for ASP.NET Core metrics. The source code for the dashboards now lives at https://aka.ms/dotnet/grafana-source.

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API & Web Development

cristipufu/aspnetcore-redis-rate-limiting

Set up a Redis backplane for ASP.NET Core multi-node deployments

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Utilities & Helpers

VsixCommunity/Community.VisualStudio.Toolkit

Making it easier to write Visual Studio extensions

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UI & Desktop Frameworks

XenoAtom/XenoAtom.Terminal.UI

XenoAtom.Terminal.UI is a modern, reactive retained-mode terminal UI framework for .NET

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Utilities & Helpers

PublicApiGenerator/PublicApiGenerator

Project to generate a public API of an assembly or type (useful for semantic versioning)

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Logging & Monitoring

serilog/serilog-sinks-console

Write log events to System.Console as text or JSON, with ANSI theme support

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Authentication & Security

kmaragon/Konscious.Security.Cryptography

No description available

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Messaging & Event-Driven

apache/pulsar-dotpulsar

The official .NET client library for Apache Pulsar

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Messaging & Event-Driven

confluentinc/confluent-kafka-dotnet

Confluent's Apache Kafka .NET client

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Logging & Monitoring

serilog/serilog-sinks-async

An asynchronous wrapper for Serilog sinks that logs on a background thread

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Data Access & ORM

microsoft/SqlScriptDOM

ScriptDOM/SqlDOM is a .NET library for parsing T-SQL statements and interacting with its abstract syntax tree

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API & Web Development

Azure/AppConfiguration

Questions, feedback and samples for Azure App Configuration service

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Office & Documents

SebastianStehle/mjml-net

.NET Fork of MJML library with 10x performance and 100% feature parity

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File & Storage

md-frank/file-service

ASP.NET Core based universal file server

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Utilities & Helpers

Cysharp/Utf8StreamReader

Utf8 based StreamReader for high performance text processing.

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Networking & Protocols

FlareSolverr/FlareSolverrSharp

FlareSolverr .Net / Proxy server to bypass Cloudflare protection

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Authentication & Security

ActiveLogin/ActiveLogin.Authentication

Support Swedish BankID (svenskt BankID) authentication in .NET. Unofficial package, not created by BankID.

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API & Web Development

hassanhabib/RESTFulSense

A RESTFul operations client that serializes responses and throws meaningful exceptions for >= 400 status codes.

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Authentication & Security

mheyman/Isopoh.Cryptography.Argon2

Fully managed .Net Core implementation of Argon2

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Utilities & Helpers

tmds/Tmds.ExecFunction

Execute a function in a separate process

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Utilities & Helpers

dfederm/ReferenceTrimmer

Easily identify which dependencies can be removed from a .NET project

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Authentication & Security

flamencist/ldap4net

OpenLdap port for DotNet Core (Linux\OSX\Windows)

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Data Access & ORM

TrackableEntities/EntityFrameworkCore.Scaffolding.Handlebars

Scaffold EF Core models using Handlebars templates.

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API & Web Development

notion-dotnet/notion-sdk-net

A Notion SDK for .Net

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.NET SDK & Platform Tools

dotnet/deployment-tools

This repo contains the code to build the .NET deployment tools and installers for all supported platforms, as well as the sources to .NET deployment tools.

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Testing & Quality

semihokur/AsyncFixer

AsyncFixer: Async/Await Analyzers and Code Fixes

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Utilities & Helpers

autofac/Autofac.Extensions.DependencyInjection

Autofac implementation of the interfaces in Microsoft.Extensions.DependencyInjection.Abstractions, the .NET Core dependency injection abstraction.

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.NET SDK & Platform Tools

DataficationSDK/Verso

Extensible interactive notebook platform for .NET. Every built-in feature, from the C# kernel to the dashboard layout, is an extension built on the same public interfaces available to third-party a…

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Caching & Performance

xoofx/Varena

Varena is a .NET library that provides a fast and lightweight arena allocator using virtual memory.

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Utilities & Helpers

moodmosaic/Fare

Port of Java dk.brics.automaton and xeger, mostly used for generating strings that match a specific regular expression.

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Authentication & Security

xoofx/Blake3.NET

Blake3.NET provides two fast, SIMD-accelerated implementations of the BLAKE3 cryptographic hash function: the fully managed Blake3 package and the native Blake3.Native package, which wraps the offi…

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Background Jobs & Scheduling

raisedapp/Hangfire.Storage.SQLite

An Alternative SQLite Storage for Hangfire

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File & Storage

LTRData/DiscUtils

Utility libraries to interact with discs, filesystem formats and more

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Background Jobs & Scheduling

HangfireIO/Hangfire.Dashboard.Authorization

Some authorization filters for Hangfire's Dashboard

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Utilities & Helpers

skwasjer/IbanNet

C# .NET IBAN validator, parser, builder and generator

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Authentication & Security

ektrah/libsodium-core

libsodium for .NET - A secure cryptographic library

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Authentication & Security

Yubico/Yubico.NET.SDK

A YubiKey SDK for .NET developers

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Utilities & Helpers

flipbit/whois

A WHOIS lookup and parsing library for .NET

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Logging & Monitoring

serilog-contrib/Serilog.Enrichers.Sensitive

A Serilog LogEvent enricher that masks sensitive data

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Data Access & ORM

PhenX/PhenX.EntityFrameworkCore.BulkInsert

Super fast bulk insertion for Entity Framework Core on SQL Server, PostgreSQL, Sqlite, MySQL and Oracle

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API & Web Development

ThrottlingTroll/ThrottlingTroll

Rate limiting/throttling/circuit-breaking library for ASP.NET, Azure Functions and, in fact, any .NET app. Supports Redis and many other distributed counter stores.

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Background Jobs & Scheduling

face-it/Hangfire.Tags

Add tags to Hangfire backgroundjobs

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Utilities & Helpers

gustavo-frizzo/CreditCardValidator

A C# library for validating and generating credit card numbers.

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Networking & Protocols

petabridge/TurboMqtt

The fastest Message Queue Telemetry Transport (MQTT) client for .NET.

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Logging & Monitoring

serilog-contrib/serilog-enrichers-clientinfo

Enrich logs with client IP, correlation id and HTTP request headers.

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Authentication & Security

saucecontrol/Blake2Fast

Optimized BLAKE2 hashing implementations in C#

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Messaging & Event-Driven

aspnetrun/run-aspnet-grpc

Using gRPC in Microservices for Building a high-performance Interservice Communication with .Net 5. See gRPC Microservices and Step by Step Implementation on .NET Course w/ discount->

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Utilities & Helpers

StefH/RandomDataGenerator

This is a configurable generator to create random data like Lorum Ipsum Text, Words, Text Patterns, First/Last Names, MAC-Addresses, IP-Addresses, Guids and DateTime.

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File & Storage

bluetianx/BirdMessenger

DotNET client implementation of the Tus protocol for resumable file uploads.

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Networking & Protocols

robertvazan/guerrillantp

Simple NTP (SNTP) client library providing .NET applications with accurate network time.

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API & Web Development

mycsharp/HttpUserAgentParser

Parsing HTTP User Agents with .NET

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Testing & Quality

saucecontrol/InheritDoc

Automatically replace <inheritdoc /> tags in .NET XML comments with inherited documentation at build time

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Messaging & Event-Driven

rebus-org/Rebus.ServiceProvider

🚌 Microsoft Extensions Dependency Injection container adapter for Rebus

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Authentication & Security

TommasoBelluzzo/FastHashes

A .NET implementation of several non-cryptographic hashes.

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Testing & Quality

reqnroll/Reqnroll.Rider

Rider plugin for Reqnroll - open-source .NET BDD framework

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File & Storage

nickdu088/SharpExt4

A .Net library to provide full access (read/write) to Linux ext2/ext3/ext4 filesystem

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File & Storage

Genbox/SimpleS3

A .NET Core implementation of Amazon's S3 API with focus on simplicity, security and performance

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API & Web Development

zymlabs/nswag-fluentvalidation

Use FluentValidation rules instead of ComponentModel attributes to define swagger schema.

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Utilities & Helpers

L3tum/HardwareInformation

.NET Standard Cross-Platform Hardware Information Gatherer

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Background Jobs & Scheduling

NielsPilgaard/Pilgaard.BackgroundJobs

A dotnet library for running background jobs in a scalable and performant manner. The jobs can trigger based on cron expressions, intervals or absolute datetime.

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Data Access & ORM

ErikEJ/SqlClientExtensions

.NET dependency injection and logging extensions for Microsoft.Data.SqlClient

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Testing & Quality

reqnroll/Reqnroll.VisualStudio

Visual Studio extension for Reqnroll - open-source .NET BDD framework

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Graphics & Imaging

aliasadidev/SixLaborsCaptcha

Generate captcha with SixLabors' libraries on .NET Core

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Authentication & Security

bitwarden/passwordless-dotnet

Bitwarden Passwordless.dev .NET SDK.

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API & Web Development

kshyju/BrowserDetector

Fast & light weight browser detection & device detection for asp.net core and azure functions

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Networking & Protocols

enclave-networks/Enclave.FastPacket

High-performance network packet decoding and packet decoder source generator

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Utilities & Helpers

Informatievlaanderen/deterministic-guid-generator

Create a deterministic GUID based on namespace Guid, a string and an optional version.

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File & Storage

egbakou/reedsolomon

Reed-Solomon Erasure Coding in C#/.NET

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Data Access & ORM

bmdrm/BMDRM.LibSql

No description available

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Utilities & Helpers

steve-warren/ksuid

K-Sortable Globally Unique IDs Library for .NET: Generate K-sortable GUIDs that maintain a balance between randomness and time-based ordering, ensuring system-wide uniqueness and minimal collisions.

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Data Access & ORM

nelknet/Nelknet.LibSQL

A native C# client library for libSQL that provides both local and remote connection support, following ADO.NET patterns

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API & Web Development

teociaps/SwaggerUI.Themes

✨ Customize and switch dynamic themes for your Swagger API documentation instantly

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Data Access & ORM

HenkKin/EntityCloner.Microsoft.EntityFrameworkCore

Cloning entities using Microsoft.EntityFrameworkCore

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Authentication & Security

DamienDoumer/The.Jwt.Auth.Endpoints

A package that easily adds JWT and social auth + endpoints to your ASP.net core project with minimal efforts on your side.

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File & Storage

jzebedee/LibDeflate.NET

LibDeflate.NET is a managed wrapper around libdeflate, a native library for fast, whole-buffer DEFLATE-based compression and decompression.

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Utilities & Helpers

toor1245/cpu_features.NET

.NET version of google/cpu_features to get cpu info at runtime.

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File & Storage

giometrix/Xtensible.TusDotNet.Azure

No description available

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Testing & Quality

microsoft/Microsoft.Learn.AzureFunctionsTesting

This library provides a helpful framework that allows you to test your Azure Functions Http Triggers in a manner similar to how ASP.NET Core integration testing works.

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Utilities & Helpers

iAJTin/iCPUID

iCPUID is a lightweight cross-platform implementation that allows us to obtain the CPUID information. Works on Windows, Linux and Mac.

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Utilities & Helpers

emberstack/ES.FX

No description available

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