Q3JS
A browser port of Quake III Arena
Compare all 2 ports of Quake III Arena- Works on mobile
Play Quake III Arena directly in your web browser with online servers and no installation required, created by L K.
Play opens q3js.com in a new tab.
- Developer
- L K
- Tech
- WebAssembly, ioquake3
- Added
- 3 Nov 2026
Q3JS is a browser port of Quake III Arena created by L K. It brings the classic multiplayer arena shooter to modern web browsers using WebAssembly and a GPL-licensed ioquake3 engine build, allowing players to jump straight into live online matches without any installation steps.
What you need
Nothing to install or upload.
Good to know
Q3JS is a non-commercial fan project using officially released demo data and is not affiliated with id Software or ZeniMax. The source code is available on GitHub.
Similar games
Vice City Web Edition
Grand Theft Auto: Vice City
Originally on PC
Works on mobile, Gamepad support
Zombies (Browser Edition)
Call of Duty: World at War
Originally on PC
Works on mobile, Gamepad support
Hit & Run WASM
The Simpsons: Hit & Run
Originally on PC
Gamepad support
Outbreak Web
Resident Evil Outbreak
Originally on PS2
Works on mobile, Gamepad support
CSJS
Counter-Strike
Originally on PC
Works on mobile
Super Mario 64 Multiplayer
Super Mario 64
Originally on N64
Needs your own game files
III Web
Grand Theft Auto III
Originally on PC
Works on mobile, Gamepad support
Comments