Mono

foundationdbapple/foundationdb

An open-source, distributed, transactional key-value store designed for large-scale structured data across commodity servers.

Chocolateychocolatey/choco

A package manager for Windows that automates software installation, upgrade, and removal like apt-get for Linux.

NancyNancyFx/Nancy

A lightweight, low-ceremony framework for building HTTP services on .NET and Mono.

Lib.Harmonypardeike/Harmony

A library for patching, replacing, and decorating .NET and Mono methods during runtime, enabling non-destructive code modifications.

Websocket-Sharpsta/websocket-sharp

A C# implementation of the WebSocket protocol providing both client and server functionality with RFC 6455 compliance.

Edge.jstjanczuk/edge

Edge.js enables in-process interoperability between Node.js and .NET, allowing you to call .NET from Node.js and vice versa.

Command Line Parsercommandlineparser/commandline

A robust C#/.NET command line parser library with *nix getopt style, supporting F# and verb commands.

Accordaccord-net/framework

A comprehensive .NET framework for machine learning, computer vision, statistics, and scientific computing.

Math.NET Numericsmathnet/mathnet-numerics

An open-source numerical library for .NET and Mono providing algorithms for scientific computing, linear algebra, statistics, and more.

Monomono/monodevelop

A cross-platform integrated development environment (IDE) for .NET applications using Mono and Gtk#.

BlzhawkTASEmulators/BizHawk

A multi-system emulator with advanced recording, debugging, and tool-assisted speedrunning (TAS) features.

F#fsharp/fsharp

Alternative packaging of the F# compiler, tools, and libraries for .NET Core and .NET Framework/Mono.

.NEXT Raftdotnet/dotNext

A high-performance .NET library suite for low-allocation scenarios like microservices, distributed systems, and database engines.

LibVLCSharpvideolan/libvlcsharp

Cross-platform .NET/Mono bindings for LibVLC, providing a comprehensive multimedia API for audio and video playback, streaming, and encoding.

EmbedIOunosquare/embedio

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

MoonSharpxanathar/moonsharp

A complete Lua interpreter written in C# for .NET, Mono, Xamarin, and Unity3D platforms with remote debugger support.