Learn System Design concepts and prepare for interviews using free resources.

A collective list of free APIs

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

Next generation API for .NET

A cross-platform C# editor and playground.

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

rhythm is just a *click* away!

🎓 Path to a free self-taught education in Computer Science!

A simple library for creating state machines in C# code

Fellow Oak DICOM for .NET, .NET Core, Universal Windows, Android, iOS, Mono and Unity

An unofficial .Net wrapper for the Discord API (https://discord.com/)

Main Liquibase Source

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

🃏 Get your Steam Trading Cards the Fast Way (Fast Mode Extension 🚀)

C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.

Cloud Native application framework for .NET

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

Npgsql is the .NET data provider for PostgreSQL.

Audio and MIDI library for .NET

Reactive collections based on Rx.Net

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

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

Distributed Application Framework for .NET

A Java Virtual Machine and Bytecode-to-IL Converter for .NET

A .NET workflows library

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

Bitwarden infrastructure/backend (API, database, Docker, etc).

Free and open-source software that allows users to set animated desktop wallpapers and screensavers powered by WinUI 3.

Fast, Low-Memory, Easy Excel .NET helper to import/export/template spreadsheet (support Linux, Mac)

ACID Document Database