Top WINDOWS GitHub Repositories & Tools (2026)

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.

🐹 Cleanup, app management, maintenance, disk analysis, and live status in one free, open-source, native Mac app + extensive support for AI agents.

A modern lossless music player built on Avalonia with rich library features

🕶️ Glassy Music is extension for music player

Run Claude Code, Codex & Gemini in parallel on Windows & macOS — git worktree fan-out with atomic hunk adoption, approval gates, reboot-surviving sessions

Open-source desktop and web app for Meta's Muse Code CLI. Runs Muse natively on Windows, macOS and WSL2, with a file viewer, inline diffs, approvals and signed auto-updating installers.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

lnwjud — local AI-agent runtime & MCP gateway

TreeMap is a fully downloadable app that can run on mac, windows, and linux. That visualizeses all of your disk-space into charts and square board. It also lets you delete unwanted files and opens files for you aswell.

The open-source macro pad with customizable widgets, powerful integrations and a secure plugin ecosystem.

A visual multi-agent desktop for Codex: live tasks, shared projects, isolated Missions, and OpenCodex models on Windows.

Project Homepage & Forums

Cross-platform desktop GUI app to clean image metadata

Run multiple commands in parallel

Standalone fishing assistant for BrownDust II on Windows. Chinese/English UI; Portable/Lite releases.

Widelands is a free, open source real-time strategy game with singleplayer campaigns and a multiplayer mode. The game was inspired by Settlers II™ (© Bluebyte) but has significantly more variety and depth to it.

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

Display Dynamic Island on Windows

Installer and automatic update framework for cross-platform desktop applications

The new Windows Terminal and the original Windows console host, all in the same place!