One link. A shared editor.

Share the editor link and build together in real time.

Edit together

Everyone with the editor link sees the same drop and each other’s cursors and selections. Type at the same time, even on the same line: edits merge without conflicts.

Everyone runs their own copy

Run starts the program in your own tab. Collaborators each run it in theirs, so each gets their own server and public URL.

Keeps working offline

Drops you have opened are kept in your browser, so they open fast and stay editable when your connection drops. Changes sync as soon as you are back online.

Who can edit

Guest drops, made without signing in, can be edited by anyone with the editor link. Drops you own can only be edited by you and the editors you invite from Share. Everyone else gets a view-only editor and can fork their own copy.

Keep secrets out of the code

Public drops can be seen by anyone with the link. Never put passwords, API keys, or personal data in index.ts. With Pro, use environment variables instead: they are stored encrypted and never copied to forks.