Browse free open source User Interface (UI) software and projects for Windows below. Use the toggles on the left to filter open source User Interface (UI) software by OS, license, language, programming language, and project status.
A free C, C++ and Fortran IDE
Jupyter Interactive Notebook
Window hooker to run fullscreen programs in window and much more...
A utility-first CSS framework for rapid UI development
The most powerful and modular diffusion model GUI, api and backend
Qt based cross-platform GUI proxy configuration manager
Innovative user interfaces made easy
The Graphical Interface for your package managers
Develop desktop GUI applications using PHP, HTML5, JavaScript
A GUI tool for extracting hard-coded subtitle (hardsub) from videos
A better UI for your package managers
An open source Java decompiler Gui for Procyon
A cross-platform GUI for youtube-dl made in Electron and node.js
Appium Server in Desktop GUIs for Mac, Windows, and Linux
Continuation of Clash Verge - A Clash Meta GUI based on Tauri
Bloat-free Graphical User interface for C++ with minimal dependencies
Localized MIUI ROMs
Full fledged GUI integration for the Android screen mirroring system
Kafka Web UI
SideStore is a fork of AltStore that doesn't require an AltServer
Modern UI for Ansible