Create together, in private
A free, open source, developer‑extensible
collaboration tool for everyone.
Try Composer
No servers, no fees
Composer synchronizes data between collaborators directly over secure, peer-to-peer connections.
There is no need for servers or cloud storage providers. This is part of why it's free.
Work offline,
collaborate real-time
Edit content while offline and sync automatically when online.
Watch others type in real-time when online.
Privacy is a human right
No servers or cloud storage providers mediate the encrypted connections with your collaborators.
You own your data entirely and it never leaves the devices you trust.
Completely malleable
Developers can modify and extend any part of Composer.
Users benefit from a growing ecosystem of extensions and integrations.
Try Composer