Run code together.
In your browser.
Spin up a room and write Python & C++ with your team in real time. Live cursors, instant execution, nothing to install — built for pair programming and coding interviews.
ship it
// why cout
Everything you need to code with someone else.
Live multiplayer
See every teammate's cursor and selection as they move. Edit the same file at once — conflict-free, powered by CRDTs.
Instant execution
Run Python & C++ and get real stdout, stderr and exit codes back in milliseconds. Pass stdin, see compile errors.
Sandboxed & safe
Every run is isolated: no network, capped CPU and memory, torn down after each execution. Nothing touches the host.
Zero setup
No installs, no accounts, no package managers. Share a link and you're writing code together in seconds.
// how it works
Three steps to coding together.
Create a room
One click spins up a private room with its own shareable code.
Share the link
Teammates join straight from the browser — no accounts needed.
Code & run
Edit side by side and execute Python or C++ whenever you like.