Qt

Powerful yet simple to use screenshot software 🖥️ 📸

A good looking terminal emulator which mimics the old cathode display...

matplotlib: plotting with Python

Free (as in freedom) open source clone of the Age of Empires II engine 🚀

Launched in 2018. It's 2023 and PySimpleGUI is actively developed & supported. Create complex windows simply. Supports tkinter, Qt, WxPython, Remi (in browser). Create GUI applications trivially with a full set of widgets. Multi-Window applications are also simple. 3.4 to 3.11 supported. 325+ Demo programs & Cookbook for rapid start. Extensive docs

Android real-time display control software

Qt binding for Go (Golang) with support for Windows / macOS / Linux / FreeBSD / Android / iOS / Sailfish OS / Raspberry Pi / AsteroidOS / Ubuntu Touch / JavaScript / WebAssembly

MuseScore is an open source and free music notation software. For support, contribution, bug reports, visit MuseScore.org. Fork and make pull requests!

Flexible level editor

Universal Radio Hacker: Investigate Wireless Protocols Like A Boss

A keyboard-driven, vim-like browser based on Python and Qt.

A library for building cross-platform native desktop applications with Node.js and CSS 🚀. React NodeGui : https://react.nodegui.org and Vue NodeGui: https://vue.nodegui.org

Official repository for Spyder - The Scientific Python Development Environment

LiteIDE is a simple, open source, cross-platform Go IDE.

Free open-source non-linear video editor

A fast and flexible keyboard launcher

A cross-platform, reimplementation of Notepad++

Build performant, native and cross-platform desktop applications with native React + powerful CSS like styling.🚀

GameStream client for PCs (Windows, Mac, Linux, and Steam Link)

Cross-platform internet upload/download manager for HTTP(S), FTP(S), SSH, magnet-link, BitTorrent, m3u8, ed2k, and online videos. WebDAV client, FTP client, SSH client.