.NET

EmbedIOunosquare/embedio

A tiny, cross-platform, module-based web server for .NET, enabling lightweight web applications and REST APIs.

Shinyshinyorg/shiny

A cross-platform .NET framework for device services and background processing on iOS, Android, macOS, and Windows.

GitVersioningAArnott/Nerdbank.GitVersioning

Automatically stamps .NET assemblies, NuGet packages, and NPM packages with unique, semantic versions derived from git commits.

NethermindNethermindEth/nethermind

A high-performance Ethereum execution client built on .NET, featuring fast sync, modular plugins, and native L2 support.

p0wnedShellCn33liz/p0wnedShell

A PowerShell runspace post-exploitation toolkit written in C# that bypasses security mitigations and includes offensive modules.

microdotgigya/microdot

An open-source .NET framework for building scalable microservices with Orleans integration and comprehensive distributed system support.

Chloeshuxinqin/Chloe

A lightweight, high-performance .NET ORM library with LINQ-style querying for multiple databases.

Castle.Windsorcastleproject/Windsor

A mature, feature-rich Inversion of Control container for .NET applications.

ParadoxSiliconStudio/xenko

Xenko is a cross-platform game engine with a focus on VR/AR development, now known as Stride.

ServiceStack.OrmLiteServiceStack/ServiceStack.OrmLite

A fast, simple, and typed ORM for .NET with a code-first approach and minimal configuration.

MySqlConnectormysql-net/MySqlConnector

A high-performance, fully managed ADO.NET data provider for MySQL and MariaDB, compatible with modern .NET.

Microsoft Automatic Graph LayoutMicrosoft/automatic-graph-layout

A .NET library and toolset for automatic graph layout, visualization, and interactive viewing of graphs.

Scientistgithub/Scientist.net

A .NET library for safely refactoring critical code paths by comparing old and new implementations in production.

ExcelDnaExcel-DNA/ExcelDna

A free library for creating Excel add-ins and user-defined functions using .NET languages like C# and VB.NET.

Fluxormrpmorris/fluxor

A zero-boilerplate Flux/Redux library for .NET and Blazor applications.

VoganSteveDunn/Vogen

A .NET source generator and analyzer that creates validated value objects from primitives to combat primitive obsession.

Sepnietras/Sep

A modern, minimal, and high-performance .NET library for reading and writing CSV/TSV files with zero allocations and SIMD-accelerated parsing.

Handlebars.NetHandlebars-Net/Handlebars.Net

A high-performance .NET implementation of the Handlebars.js templating engine that compiles templates directly to IL bytecode.

TagLib#mono/taglib-sharp

A .NET library for reading and writing metadata in video, audio, and image files across multiple formats.

serilog-aspnetcoreserilog/serilog-aspnetcore

Serilog integration for ASP.NET Core that routes framework log messages through Serilog's pipeline.

Qml.Netpauldotknopf/Qml.Net

A Qt/QML integration for .NET, enabling .NET developers to build cross-platform desktop and embedded GUI applications.

Template10Windows-XAML/Template10

A production-ready framework for building Windows 10 UWP apps with navigation, dependency injection, and MVVM patterns.

FluentDockermariotoffia/FluentDocker

A .NET library for interacting with Docker and Docker Compose via a fluent API, supporting local and remote containers in tests and applications.

Sucrose Wallpaper EngineTaiizor/Sucrose

A versatile wallpaper engine that creates interactive and customizable desktop experiences.

FastExpressionCompilerdadhi/FastExpressionCompiler

A high-performance compiler for C# Expression Trees and a lightweight alternative to System.Linq.Expressions.

NeutroniumNeutroniumCore/Neutronium

Build .NET desktop applications using HTML, CSS, and JavaScript with MVVM bindings for Vue.js and Knockout.js.

CSLA .NETMarimerLLC/csla

A .NET framework for building reusable, maintainable object-oriented business layers in any .NET application.

ILRepackgluck/il-repack

An open-source tool for merging multiple .NET assemblies into a single assembly, serving as a modern replacement for ILMerge.

IoTSharpIoTSharp/IoTSharp

An open-source industrial IoT platform for device connectivity, telemetry collection, rule-chain processing, and multi-tenant management.

IoTSharpIoTSharp/IoTSharp

An open-source industrial IoT platform for device connectivity, telemetry collection, rule-chain processing, and multi-tenant management.

Blazored.LocalStorageBlazored/LocalStorage

A library providing access to browser local storage with automatic serialization for Blazor applications.

Colorful.Consoletomakita/Colorful.Console

A C# library that enhances .NET console output with rich color styling, gradients, ASCII art, and text formatting.

Realmrealm/realm-dotnet

A mobile-first database for .NET that replaces SQLite and ORMs with a fast, object-oriented data layer.

Casbin.NETcasbin-net/Casbin.NET

A powerful .NET authorization library supporting ACL, RBAC, ABAC, and other access control models.

Virto CommerceVirtoCommerce/vc-platform

An open-source, headless ecommerce platform built on .NET for building extensible B2B, B2C, and B2B2C applications.

Otp.NETkspearrin/Otp.NET

A .NET library for generating and validating TOTP and HOTP codes, commonly used for two-factor authentication.