Live coding with anyone,
in six characters.
Encrypted in your browser. Erased when you leave. No account, ever. Your room is six characters — share the code, write together in real time, and the relay never sees plaintext.
Three steps. No account. No trace.
- 01
Open a room
Click Create. A 6-character code is generated. Nothing about you is stored — not your email, not your IP beyond a 60-second rate-limit window.
- 02
Share the code
Send the code (or a view-only link, or a QR for mobile). They type it in. Their browser derives the same AES-GCM key from the code — relay never sees it.
- 03
Write together. Run it. Erase on the way out.
Cursors, typing indicators, chat, files — all sync in real time. Run 8 languages with program input and popular Python libraries (numpy, pandas…). When the last person leaves, the room self-destructs after the TTL you chose (10 min / 1 h / 24 h).
Three rooms, three reasons.
Pair programming
Spin up a room, drop the code in a chat, watch your partner's cursor move line by line. No repo, no setup, no friction.
Interview practice
Share a 6-character code over the call. Run Python, JS, C++, Rust — eight languages, in-browser, no install.
Sharing a quick snippet
Faster than a gist, more private than a paste. Set a 10-minute TTL, paste, share, and the room is gone when you close the tab.
Questions,
honestly answered.
Every answer below matches what the code actually does. See all 19 questions with search and category filters in the interactive modal, or read the full security write-up.
Yes. The 6-character room code (plus optional room password) runs through PBKDF2-SHA256 at 600,000 rounds with two independent salts. One salt derives your AES-GCM-256 encryption key, which strictly never leaves your browser; the other derives an authentication token, of which the relay only ever stores the SHA-256 hash. Every document update, chat message, and file chunk is sealed with that key before it touches the network — the relay forwards opaque ciphertext and cannot read anything you write.
Open a room. It erases itself when you leave.
No account. No email. No trace. Six characters between you and a live, encrypted session with anyone on the internet.