A library containing all P/Invoke code so you don't have to import it
CodeMaid is an open source Visual Studio extension to cleanup
Near-zero config .NET Core micro-framework
A GUI framework for C# console applications
UI library that brings the simplicity of native UI development to web
App Metrics is an open-source and cross-platform .NET library
The best library to work with the .Net Core from Delphi and Lazarus.
Tweetinvi, an intuitive Twitter C# library for the REST and Stream API
Build .NET desktop applications using HTML, CSS and javascript
This is the best library to work with the .Net framework from Delphi.
Wrapper around System.Drawing for the processing of image files
The best Java library to work with .Net libraries and frameworks.
.NET control that hosts the audio/video capabilities of the VLC libs
An advanced audio library, written in C#. Provides tons of features
Machine learning, computer vision, statistics and computing for .NET
object-based image analysis framework
Scientific computing, machine learning and computer vision for .NET
Information Oriented Programming Library for C#
qxdotnet is a server side ASP.NET wrapper for qooxdoo library
Lightweight fully extendable client/server application framework
Make robots for MediaWiki-powered sites!
A model-based test automation framework for GUI applications
MetaN is a framework which provides some useful tools for C# / .NET.