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

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

Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

Highly performant and modular controls for node-based editors designed for data-binding and MVVM.

An open source fork of Windows Live Writer

One framework for creating powerful cross-platform games.

💫 NClient is an automatic type-safe .Net HTTP client that allows you to call web service API methods using annotated interfaces or controllers without boilerplate code.

Mutation testing for .NET core and .NET framework!

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

Every programmer needs a rubberduck. COM add-in for the VBA & VB6 IDE (VBE).

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 infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.

Open-source platform for building cross-platform native Mobile, Web, Desktop and Embedded apps quickly. Create rich, C#/XAML, single-codebase apps from any IDE. Hot Reload included! 90m+ NuGet Downloads!!

A cross-platform plotting library for .NET

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

ML.NET is an open source and cross-platform machine learning framework for .NET.

Lean Algorithmic Trading Engine by QuantConnect (Python, C#)

Linq to database provider.