Instant zero-latency collaborative code editor with live HTML preview, synchronized code racing, and 13+ arcade games. 100% private & free — no setup required.
A complete suite for real-time pair programming, instant web sandboxes, competitive coding, and arcade breaks.
Collaborate in real time with teammates. Powered by Yjs CRDT and WebRTC mesh, every keystroke syncs instantly across devices.
Instant HTML, CSS, JavaScript, and Python code execution. Write markup or logic and inspect the live interactive web view in real time.
Race against peers in synchronized coding and syntax challenges. Track real-time player positions, speedometers, and leaderboards.
Take high-energy breaks with Cyber Snake, Pong AI, Breakout, 2048, Ludo, Minesweeper, Flappy Drone, and Speed Typing.