Quake III Arena map editor

Edit, compile & play Quake III maps in your browser.

Open, edit, and save real .map files — brushes, patches, entities, and terrain in a TypeScript + WebGL2 editor, with BSP compilation by id Software's original q3map compiled to WebAssembly. One click launches your compiled map in browser-native ioquake3.

Launch Q3Edit No game files needed — ships with OpenArena assets. Requires WebGL2.

01 Radiant-style four-view UI
02 Brushes, patches, CSG, terrain
03 q3map + ioquake3 in WASM

Q3Edit showing its four map-editing viewports, toolbars, object list, entity controls, and texture browser

Real screenshot — the editor running in a browser tab