PowerShell / PowerShell
Cross-platform command-line shell, scripting language, and automation framework for Windows, Linux, and macOS.
PowerShell / PowerShell
QuantConnect / Lean
Lean Algorithmic Trading Engine by QuantConnect (Python, C#)
icsharpcode / ILSpy
Cross-platform .NET assembly browser and decompiler that turns compiled assemblies back into readable C#.
ralphtradesz / trading-hub
Plataforma de trading gratis y de código abierto para Mac (con guía para portarla a Windows con Claude): footprint, DOM, backtesting anti-sobreoptimización y estrategias con IA. 100 % local.
sourcegit-scm / sourcegit
Open-source cross-platform Git GUI client for Windows, macOS, and Linux with a visual commit graph and interactive rebase.
TechnitiumSoftware / DnsServer
Technitium DNS Server
Unity-Technologies / unity-agent-plugin
Unity plugin for third-party agent platforms
OpenRA / OpenRA
Open-source real-time strategy engine that runs early Westwood classics like Command & Conquer: Red Alert on modern systems.
huynhsontung / Screenbox
LibVLC-based media player for the Universal Windows Platform
nota-daw / nota
Nota — a free DAW for macOS, Windows and Linux. No subscription, no account — just open it and make music.
DevToys-app / DevToys
A Swiss Army knife for developers.
StockSharp / StockSharp
Algorithmic trading and quantitative trading open source platform to develop trading robots (stock markets, forex, crypto, bitcoins, and options).
openutau / OpenUtau
Open singing synthesis platform / Open source UTAU successor
LykosAI / StabilityMatrix
Multi-Platform Package Manager for Stable Diffusion
Kareadita / Kavita
Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.
AvaloniaUI / Avalonia
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI
d2phap / ImageGlass
🏞 A fast, open-source, modern image viewer for 90+ formats – including WEBP, GIF, SVG, AVIF, JXL, HEIC and more – built for smooth browsing across Windows, macOS, and Linux.
nilaoda / N_m3u8DL-RE
Cross-Platform, modern and powerful stream downloader for MPD/M3U8/ISM. English/简体中文/繁體中文.
stride3d / stride
Open-source cross-platform game engine written in C#, with a visual editor called Game Studio.
Jeric-X / SyncClipboard
跨平台剪贴板同步、历史记录管理工具 / Cross-platform cipboard syncing, history management tool
dotnet / aspnetcore
Cross-platform .NET framework for building cloud-connected web, IoT, and mobile backend applications.
MonoGame / MonoGame
One framework for creating powerful cross-platform games.
git-ecosystem / git-credential-manager
Secure, cross-platform Git credential storage with authentication to GitHub, Azure Repos, and other popular Git hosting services.
0x90d / videoduplicatefinder
Video Duplicate Finder - Crossplatform
velopack / velopack
Installer and automatic update framework for cross-platform desktop applications
vchelaru / Gum
Flexible layout tool for creating UI on any platform
OpenTabletDriver / OpenTabletDriver
Open source, cross-platform, user-mode tablet driver
SnapXL / SnapX
SnapX is a free, open-source, cross-platform tool that lets you capture or record any area of your screen and instantly share it with a single keypress. Upload images, videos, text, and more to multiple supported destinations—all with ease. ShareX fork
AIDotNet / OpenDeepWiki
OpenDeepWiki is the open-source version of the DeepWiki project, aiming to provide a powerful knowledge management and collaboration platform. The project is mainly developed using C# and TypeScript, supporting modular design, and is easy to expand and customize.
videolan / libvlcsharp
Cross-platform .NET/Mono bindings for LibVLC
AtomUI / AtomUI
An enhancement and extension library for Avalonia, bringing the Ant Design design language, modern controls, theming, native integrations, and cross-platform UI capabilities to .NET desktop apps.
simple-acme / simple-acme
A simple cross platform ACME client (for use with Let's Encrypt et al.)
githubuser420x / FGOAC-scooby
English launcher and patch for the FGO Arcade local platform
Aimee51819 / FileFlipper
FileFlipper — Quick Edit for Mac & Windows. One-click Markdown: turn Word, PDF, PowerPoint and Excel into clean Markdown that AI reads with fewer tokens. Plus Shift-drag conversion in Finder and File Explorer: JPG, PNG, PDF, HEIC, MP4, crop, OCR. 100% on-device, free and open source. Mac 和 Windows 都能用，一键转 Markdown。
dotnet / runtime
Source for the .NET runtime, base class libraries, and the dotnet host installers across supported platforms.
nopSolutions / nopCommerce
ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart.
unoplatform / uno
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.
isadorasophia / murder
Murder is a pixel art ECS game engine.
FNA-XNA / FNA
FNA - Accuracy-focused XNA4 reimplementation for open platforms
vpnhood / VpnHood
Undetectable, Fast, Cross-Platform, Free VPN
GZTimeWalker / GZCTF
The GZ::CTF project, an open source CTF platform.
Kindness-Kismet / stelliberty
Stelliberty Remake: A high-performance, visually appealing, and modern cross-platform network client.
microsoft / testfx
This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.
aprillz / MewUI
A cross-platform and lightweight, code-first .NET GUI framework aimed at NativeAOT.
C7-Game / OpenCiv3
OpenCiv3 is an open-source, cross-platform, mod-oriented, modernized remake of Civilization III by the fan community built with the Godot Engine and C#, with capabilities inspired by the best of the 4X genre and lessons learned from modding Civ3.
potatobeanradio / circuitRF
Full featured, cross-platform RF circuit + electromagnetic simulator. DC, S-parameters, harmonic balance, loadpull, envelope. Also supports 2D and 3D layout and design and electromagnetic MoM, FEM, FDTD + thermal FEM.
KloBraticc / Voidstrap
Voidstrap is a simple yet advanced fork of Bloxstrap, advanced customization and improvements.
dotnet / machinelearning
ML.NET is an open source and cross-platform machine learning framework for .NET.
mono / SkiaSharp
SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.
mikependon / RepoDB
A production-ready data access platform for .NET applications.
irihitech / Ursa.Avalonia
Ursa is an enterprise level UI library for building cross-platform applications with Avalonia UI.
Decimation / SmartImage
Reverse image search tool (SauceNao, IQDB, Ascii2D, trace.moe, and more)
OpenSilver / OpenSilver
Build Cross-Platform Apps with C#, VB.NET, or F# and XAML. One codebase. Six platforms. Powered by WebAssembly and .NET.
visualHFT / VisualHFT
VisualHFT Terminal: open-source observability and decision terminal for electronic trading desks. Live Level 2 order books, microstructure analytics, and quantitative execution monitoring.
CommunityToolkit / Windows
Collection of controls, helpers and extension for WinUI 2, WinUI 3, and Uno Platform developers. Simplifies and demonstrates common developer tasks building experiences for Windows with .NET.
ClassicUO / ClassicUO
ClassicUO - an open source implementation of the Ultima Online Classic Client.
ky2421 / Windows-Environment-Management-Platform-WEMP-
这不是传统的系统优化软件，而是一个Windows环境管理平台。
arloopa / UnitySplats
Cross-platform Unity 6 package for importing, loading, and rendering 3D Gaussian Splats. Supports Built-in, URP, HDRP, PLY/SOG/SPZ/GLB formats, runtime loading, GPU and CPU sorting, XR, mobile, desktop, and WebGL 2.
tui-cs / Terminal.Gui
Cross Platform Terminal UI toolkit for .NET
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.