ahwootech / BRUTAL

A free, open source C# framework for making games, or your own game engine. Direct access to native APIs and Vulkan, with the low-level libraries around them. The foundation under Kitten Space Agency and RimWorld's Waylith engine.

ggml-org / Llama-Windows

Windows Llama App Companion

QL-Win / QuickLook

Bring macOS “Quick Look” feature to Windows

JosefNemec / Playnite

Video game library manager with support for wide range of 3rd party libraries and game emulation support, providing one unified interface for your games.

Devolutions / UniGetUI

UniGetUI: The Graphical Interface for your package managers. Could be terribly described as a package manager manager to manage your package managers

LenovoLegionToolkit-Team / LenovoLegionToolkit

Lenovo Legion Toolkit (LLT) is a Windows desktop utility created for Lenovo gaming laptops that replaces Lenovo Vantage, Legion Zone, and Legion Space.

srwi / EverythingToolbar

Everything integration for the Windows taskbar.

microsoft / Generative-AI-for-beginners-dotnet

Five lessons, learn how to really apply AI to your .NET Applications

zhongkaifu / TensorSharp

A native .NET LLM inference engine and agent runtime for GGUF models. TensorSharp provides a console application, a web-based chatbot interface, iPhone App, and Ollama/OpenAI-compatible HTTP APIs for programmatic access. It supports Windows/MacOS/iOS/Linux with full GPU capability

FroggMaster / CreamInstaller

Automatically finds all installed Steam, Epic and Ubisoft games with their respective DLC-related DLL locations on the user's computer, parses SteamCMD, Steam Store and Epic Games Store for user-selected games' DLCs, then provides a very simple graphical interface utilizing the gathered information for the maintenance of DLC unlockers.

jackwrichards / placemaker

Placemaker, a Cities: Skylines II mod: select an area and turn it into roads, parking, parks, shops and more.

riyasy / FlyPhotos

A blazing fast ultra-light photo viewer replacement for Windows. Works similar to Picasa Photo Viewer.

BornToBeRoot / NETworkManager

A powerful open-source tool for managing networks and troubleshooting network problems!

mcmonkeyprojects / SwarmUI

SwarmUI (formerly StableSwarmUI), A Modular Stable Diffusion Web-User-Interface, with an emphasis on making powertools easily accessible, high performance, and extensibility.

microsoft / winappCli

winapp, the Windows App Development CLI, is a single command-line interface for managing Windows SDKs, packaging, generating app identity, manifests, certificates, and using build tools with any app framework.

space-wizards / space-station-14

A multiplayer game about paranoia and chaos on a space station. Remake of the cult-classic Space Station 13.

space-wizards / RobustToolbox

Robust multiplayer game engine, used by Space Station 14

OpenTabletDriver / OpenTabletDriver

Open source, cross-platform, user-mode tablet driver

data-goblin / power-bi-agentic-development

Power BI AI skills and Power BI agents for Claude Code and GitHub Copilot: a plugin marketplace of Power BI skills, subagents, and hooks for semantic models, DAX, TMDL, reports, and AI dashboards. Includes Microsoft Fabric skills and Fabric agents. Weekly updates.

Webreaper / Damselfly

Damselfly is a server-based Photograph Management app. The goal of Damselfly is to index an extremely large collection of images, and allow easy search and retrieval of those images, using metadata such as the IPTC keyword tags, as well as the folder and file names. Damselfly includes support for object/face detection.

PXDiv / Div-Acer-Manager-Max

Div Acer Manager Max is a Linux GUI for Acer laptops using Linuwu Sense drivers. It replicates NitroSense functionality with fan control, performance modes, battery limiter, and more. Built with Avalonia, it offers a clean, easy-to-use interface for managing system performance and cooling.

Tyrrrz / CliWrap

Library for interacting with command-line interfaces

SteamRE / SteamKit

SteamKit2 is a .NET library designed to interoperate with Valve's Steam network. It aims to provide a simple, yet extensible, interface to perform various actions on the network.

googleprojectzero / sandbox-attacksurface-analysis-tools

Set of tools to analyze Windows sandboxes for exposed attack surface.

Decimation / SmartImage

Reverse image search tool (SauceNao, IQDB, Ascii2D, trace.moe, and more)

AntdUI / AntdUI

👚 Winform interface library based on the Ant Design

character-map-uwp / Character-Map-UWP

A modern, native UWP replacement for the Win32 Character Map and Windows Font Viewer with flawless high DPI and touch support.

drJhonatan00 / 3DS-EB

3DS-EB is a complete ground-up C# re-engineering of Asia81's HackingToolkit9DS, built to deliver maximum speed, a clean interface, and seamless 3DS ROM extraction/rebuilding without the performance bottlenecks of the original toolchain.

drJhonatan00 / BackAuto

BackAuto is a modern, lightweight, and efficient automated backup utility built with .NET 8 and Windows Forms. Designed for performance and reliability, it allows users to protect important files effortlessly through a clean user interface and flexible background scheduling.

reactiveui / refit

The automatic type-safe REST library for .NET. Refit turns a REST API into a C# interface and generates the HttpClient implementation, with support for HttpClientFactory, pluggable serializers and a testing package.

reactiveui / ReactiveUI

A composable, cross-platform MVVM framework for .NET inspired by functional reactive programming. It moves mutable state out of the user interface, keeps each feature's logic in one readable place, and makes applications easier to test. Supports WPF, WinForms, WinUI, .NET MAUI, Avalonia, Uno Platform, Blazor and Android.

Facepunch / Facepunch.Steamworks

Another fucking c# Steamworks implementation

paolosalvatori / ServiceBusExplorer

The Service Bus Explorer allows users to connect to a Service Bus namespace and administer messaging entities in an easy manner. The tool provides advanced features like import/export functionality or the ability to test topic, queues, subscriptions, relay services, notification hubs and events hubs.

itext / itext-dotnet

iText for .NET is the .NET version of the iText library, formerly known as iTextSharp, which it replaces. iText represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enha

grandnode / grandnode2

Open-source eCommerce platform for C# and ASP.NET Core 10 with MongoDB. Build multi-store shops and multi-vendor marketplaces with B2B/B2C, REST API, plugins, Vue 3 and Docker.

mackysoft / Unity-SerializeReferenceExtensions

Provide popup to specify the type of the field serialized by the [SerializeReference] attribute in the inspector.

LogExperts / LogExpert

Windows tail program and log file analyzer.

meziantou / Meziantou.Analyzer

A powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices—helping developers and AI write more reliable code.

microsoft / XmlNotepad

XML Notepad provides a simple intuitive User Interface for browsing and editing XML documents.

trueai-org / midjourney-proxy

🦄 The world's largest Midjourney drawing API, generating over 1 million drawings daily, supporting Discord Youchuan Midjourney 🐂！

ShokoAnime / ShokoServer

Shoko is a media metadata aggregator that solves all of the annoying edge cases that face anime's differing structure from western media. It integrates directly with media software rather than working around things like nfo files or naming conventions.

DataDog / dd-trace-dotnet

.NET Client Library for Datadog APM

emaspa / openxlr

A Wave Link replacement for Linux: a PipeWire mixer with effects and an OpenDeck plugin for any microphone, plus full control of Elgato XLR interfaces and Wave microphones

wlytsgd2 / JiggleForge

A configurable world-space deformation framework for XXMI/3DMigoto replacement Mods

smourier / Filociraptor

A fast Windows file manager written in C#, rendered with Direct2D and compiled with NativeAOT. GPU drawn, fully virtualized and allocation free on the hot path, so folders with thousands of files open and scroll instantly.

carlosmozart / PKHeX-Modern

PKHeX Modern: interface moderna do PKHeX (Avalonia) para Windows, Linux, macOS e Android. Modern UI for the PKHeX Pokémon save editor.

ChilliCream / graphql-platform

Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Nitro the awesome Monaco based GraphQL IDE.

Stability-AI / StableSwarmUI

StableSwarmUI, A Modular Stable Diffusion Web-User-Interface, with an emphasis on making powertools easily accessible, high performance, and extensibility.

exceptionless / Exceptionless

Exceptionless application

OmniSharp / omnisharp-roslyn

OmniSharp server (HTTP, STDIO) based on Roslyn workspaces

Tyrrrz / CliFx

Class-first framework for building command-line interfaces

axuno / SmartFormat

A lightweight text templating library written in C# which can be a drop-in replacement for string.Format

Tim-Maes / Facet

Generate DTOs, mappings, constructors and LINQ projections from your domain models.

benaclejames / VRCFaceTracking

OSC App to allow VRChat avatars to interact with eye and facial tracking hardware

Leo-Corporation / InternetTest

InternetTest is a modern connection utility for Windows. It can locate IP addresses, send ping request, recover your WiFi passwords and more!

syncfusion / maui-toolkit

Syncfusion Toolkit for .NET MAUI offers high-quality UI controls to help you build rich, high-performance applications for iOS, Android, macOS, and Windows from a single codebase

krpc / krpc

Remote Procedure Calls for Kerbal Space Program

ekonbenefits / impromptu-interface

Static interface to dynamic implementation (duck casting). Uses the DLR combined with Reflect.Emit.

Krypton-Suite / Standard-Toolkit

An update to Component factory's krypton toolkit to support .NET Framework 4.6.2 - 4.8.1 to .NET 8 - 10

CommunityToolkit / Maui.Markup

The .NET MAUI Markup Community Toolkit is a community-created library that contains Fluent C# Extension Methods to easily create your User Interface in C#