Q3Edit enables editing and playing Quake III maps in the browser

Q3Edit is a web‑based tool that lets users edit Quake III maps. It also enables playing those maps directly in the browser. The project was shared as a Show HN submission. Q3Edit runs entirely client‑side using modern web technologies. Users can load, modify, and test maps without installing software. The tool demonstrates the capabilities of browser‑based game development. Developers are invited to contribute or provide feedback on the site. The project highlights the continued interest in classic game modding.