Open Source Windows Tools
Discover 36 open source Windows repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Windows projects here are most often combined with Desktop App, Linux and macOS. Last updated October 3, 2026.
36 repositories · updated October 3, 2026
UFO: Automate Desktop Tasks Across Devices with AI Agents
UFO combines a Windows desktop agent with a framework for coordinating agents across devices and platforms. Use it for Windows automation or multi-step workflows that need task planning, device assignment, and parallel execution.
GeoPort: Simulate an iPhone's Location from Desktop
GeoPort is a desktop app for simulating an iOS device's location on iOS 17 and 18. It is aimed at developers testing location-based apps and users who need to change a device's simulated location, with Windows and macOS packages available from releases.
openemr: Manage Electronic Health Records and Medical Practices
OpenEMR is a free, open-source application for electronic health records and medical practice management. It brings clinical records, scheduling, and billing together for healthcare practices that need a cross-platform system.
Waifu2x-Extension-GUI: Upscale Images and Video
A Windows desktop app for enlarging and denoising images, GIFs, and video, with AI-based video frame interpolation. It combines multiple processing engines and supports AMD, Nvidia, and Intel GPUs.
p2p: Connect Two PCs for Remote Desktop and Chat
p2p is a portable Windows remote desktop tool for direct peer-to-peer connections, with remote control and messaging. It may suit one-off support or direct assistance when both users can exchange connection addresses and run the app as administrator.
pear-desktop: Use YouTube Music as a Desktop App
Pear Desktop wraps YouTube Music in a cross-platform desktop application with a native look and feel. It suits listeners who want a dedicated player and developers who want to extend it with plugins and themes.
keyboard: Capture and Simulate Keyboard Events in Python
A Python library for listening to and generating global keyboard events, registering hotkeys, and recording or replaying input. Useful for desktop automation and keyboard-driven tools, with platform permissions and support limitations to consider.
MD3-Windows: Add Material You Widgets to a Windows Desktop
MD3-Windows is a Rainmeter skin that brings wallpaper-adaptive Material You styling to Windows widgets and desktop controls. It suits people who want an Android-inspired desktop, provided they use Rainmeter and Windows dark mode.
reinstall: Reinstall VPS Operating Systems from Linux or Windows
A shell-based toolkit for reinstalling Linux or Windows on VPS instances without relying on provider consoles. It also supports raw disk imaging and booting temporary recovery environments, with important risks for systems that cannot tolerate a full disk wipe.
Installer: Make Windows 11 More Consistent
Rectify11 Installer applies system-file modifications and other changes intended to make Windows 11 more visually consistent. The repository describes the V3 installer, but advises against using it because V4 is a complete rewrite.
QDoctor: Inspect Windows Systems for Rootkits and Threats
QDoctor is a Windows incident-response and anti-rootkit utility for examining system, process, kernel, network, and file activity. Responders can export structured host data for offline review or import it for investigation.
Ghosting-AMSI: Intercept AMSI Scans Through RPC
Ghosting-AMSI is a PowerShell proof of concept for intercepting AMSI scan requests at the Windows RPC layer. It is aimed at security researchers studying AMSI and antivirus-provider communication, not routine application development.