Loup is a collaborative code editor for developers, interviewers, educators, and teams who need to code together in real time. It's perfect for technical interviews, pair programming, code reviews, and remote collaboration—no setup required.

Loup uses CRDT technology to sync edits instantly across all participants. You'll see every keystroke, cursor movement, and selection in real time—just like Google Docs, but for code. Changes merge automatically without conflicts.

No! Loup works completely anonymously. Just visit the site, create a session, and share the unique link with anyone. They can join instantly without signing up or downloading anything.

All sessions automatically delete 24 hours after the last edit. This ensures your code stays private and ephemeral by default. If you need to save your work, simply copy it before the session expires.

Loup supports syntax highlighting for dozens of popular languages including JavaScript, TypeScript, Python, Java, C/C++, Rust, Go, Ruby, PHP, and many more. You can switch languages anytime during a session.

Yes! Loup is built for multi-user collaboration. Any number of people can join a session and edit code simultaneously. You'll see each person's cursor and changes in real time without any conflicts.