Open Source GUI Projects
A graphical user interface (GUI) lets people interact with software through visual elements such as windows, menus, buttons, and charts rather than relying only on typed commands. GUIs make complex tasks easier to discover and perform, from managing files and configuring networks to exploring data and editing media. They can be built for desktop, mobile, or web environments, with different approaches to layout, input, and accessibility.
Open source GUI tools include application frameworks, interface libraries, desktop utilities, and visual front ends for command-line software. When choosing one, consider supported platforms, accessibility, documentation, license, maintenance activity, system requirements, and integration with existing tools. These projects are useful to developers building interfaces, teams seeking adaptable software, and individuals who prefer visual controls for everyday or specialized tasks.
8 repositories · updated June 18, 2026
Notes: A Fast and Beautiful Cross-Platform Note-Taking App
Notes is an open-source, cross-platform note-taking application designed for speed and beauty. Written in C++ with Qt, it offers robust features like Markdown support, Kanban boards for tasks, and comprehensive organization options. This app prioritizes user privacy, ensuring a secure and efficient environment for capturing your thoughts.
QDirStat: Efficient Disk Space Analysis and Cleanup for Linux and macOS
QDirStat is a powerful, Qt-based graphical application designed to help you understand where your disk space has gone and efficiently clean it up. It is the modern, KDE-independent successor to the original KDirStat, developed by the same author. QDirStat provides an intuitive interface for visualizing disk usage, making it an essential tool for system maintenance on Linux, BSD, Unix-like systems, and macOS.
Clash Party: An Electron-Based GUI for Mihomo Proxy Management
Clash Party is an open-source, Electron-based graphical user interface (GUI) designed for Mihomo, a powerful proxy core. It offers a user-friendly and feature-rich experience for managing network proxy configurations. With robust capabilities and deep integration with tools like Sub-Store, it simplifies complex proxy setups.
Seabird: Native Kubernetes Desktop IDE for Seamless Cluster Exploration
Seabird is a native Kubernetes desktop IDE designed for the GNOME environment, offering an intuitive interface for cluster exploration and management. It provides essential features like a terminal for command execution, monitoring through logs and metrics, and a resource editor with convenient API reference access.
PyQtGraph: Fast Data Visualization and GUI Tools for Scientific Applications
PyQtGraph is a powerful, pure-Python graphics library tailored for scientific and engineering applications. It provides fast data visualization and GUI tools, leveraging NumPy for numerical processing, Qt's GraphicsView for 2D, and OpenGL for 3D displays. This makes it an excellent choice for high-performance data plotting and interactive interfaces.
Fyne: A Cross-Platform GUI Toolkit in Go Inspired by Material Design
Fyne is an easy-to-use UI toolkit and application API written in Go, designed to build cross-platform applications. It allows developers to create desktop and mobile apps from a single codebase, drawing inspiration from Material Design principles. With Fyne, you can develop elegant and functional graphical user interfaces efficiently.
YTSage: A Modern YouTube Downloader with a Clean PySide6 GUI
YTSage is a modern, cross-platform YouTube downloader featuring a clean PySide6 interface. It allows users to download videos in various qualities, extract audio, fetch subtitles, and utilize advanced features like SponsorBlock integration. Built on yt-dlp, YTSage ensures reliable and efficient media downloads.
Vividl: Modern Video Downloader for Windows with youtube-dl/yt-dlp
Vividl is a free video downloader for Windows, providing a modern graphical user interface for the powerful command-line tools youtube-dl and yt-dlp. It enables users to effortlessly download videos from hundreds of websites, offering various formats and audio extraction. With its intuitive design, Vividl simplifies the process of saving online videos and supports parallel downloads.