Top CSHARP GitHub Repositories & Tools (2026)

A feature-complete reader and client for LANraragi

Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 145+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI. If Radzen Blazor is useful to you, a ⭐ on GitHub helps other Blazor developers find it.

A Roslyn source generator for creating constructors.

A fast and low allocation StringBuilder for .NET.

Ownaudio is a cross-platform C# audio library that works across platforms without external dependencies.

A lightweight macOS & Windows menu bar app for capturing screenshots (PNG), video (MP4), and animated GIFs of a selected screen region.

Raven is a pragmatic, typed, general-purpose programming language for .NET.

A modular, extensible 2D game framework for .NET.

A FFXIV Dalamud plugin for improving the GPose experience in FFXIV.

Aspire is the tool for code-first, extensible, observable dev and deploy.

Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.

AI-driven intelligent clipboard turns scattered content across applications into a searchable, editable AI context. It features a clean, elegant interface with smooth animations and offers rich item management capabilities. Agents can process workspace items on demand. This is a companion productivity tool.

Blazor UI components you own: headless primitives + styled components delivered as source by a dotnet tool. Tailwind CSS v4, 8 skins, 16 palettes, RTL and WCAG AA out of the box.

A Windows share target for bringing WeChat chat archives to ChatGPT.

Free, open-source display control for Windows 11: one brightness slider for every monitor (DDC/CI and laptop panels), night light, focus mode, keep awake, per-monitor taskbar hiding and glass, OLED care, your monitor's own settings, hotkeys and a CLI.

Turn your Windows PC into a couch console. A free, controller-friendly front end in three shells — a channel grid, a blade dashboard and a media bar — with an optional, carefully guarded shell mode. Very early beta.

A compact screen-edge system monitor for Windows and Linux, built with Avalonia and .NET.

A file explorer homebrew application for the PS5 console, written in C# on top of the SharpProspero SDK.

Open-source Asheron's Call client for .NET 10. The original game's behavior, a maintained codebase, a plugin API.

A persistent PS5 daemon payload for promoting the caller's process (credentials, capabilities, and filesystem view).