Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and …

Generate and edit PDF documents in your .NET applications using the open-source QuestPDF library and its C# Fluent API. Build invoices, reports and data exports with ease.

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

The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.

Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities

C# pure functional programming framework - come and get declarative!

Audio and MIDI library for .NET

Library for running command-line processes

The high-speed OpenGL, OpenCL, OpenAL, OpenXR, GLFW, SDL, Vulkan, Assimp, WebGPU, and DirectX bindings library your mother warned you about.

A library to support tests with throwaway instances of Docker containers for all compatible .NET Standard versions.

A Json based Rules Engine with extensive Dynamic expression support

C# as you know it but with Go-inspired tooling (small, selfcontained, and native executables)

Zero allocation LINQ with LINQ to Span, LINQ to SIMD, and LINQ to Tree (FileSystem, JSON, GameObject, etc.) for all .NET platforms and Unity, Godot.

Micro-framework for .NET console application. Cocona makes it easy and fast to build console applications on .NET.

A small .NET package to generate YouTube-like hashes from one or many numbers. Use hashids when you do not want to expose your database ids to the user.

Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.

A modern, fast and flexible .NET testing framework

Provides a set of libraries which add service API versioning to ASP.NET Web API, OData with ASP.NET Web API, and ASP.NET Core.

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

Makes life working with units of measurement just a little bit better.

FNA - Accuracy-focused XNA4 reimplementation for open platforms

A high performance implementation of Mediator pattern in .NET using source generators.

Nez is a free 2D focused framework that works with MonoGame and FNA

An easy to use thread safe in-memory caching service with a simple developer friendly API for c#

Testing layer for Microsoft's HttpClient library. Create canned responses using a fluent API.

⚡ Decompilation Tools and High Productivity Utilities ⚡

A high-performance C# based Archetype & Chunks Entity Component System (ECS) with optional multithreading.

A source generator for generating fast "reflection" methods for enums

C# bindings for raylib, a simple and easy-to-use library to learn videogames programming

Modules that mix PowerShell and GUIs/CUIs!