Cwtch

Cwtch: Surveillance Resistant Peer to Peer Infrastructure powered by v3 onion services - a project by the Open Privacy Research Society ([@openprivacy](https://hachyderm.io/@openprivacy ))

Website: https://cwtch.im
Donate: https://openprivacy.ca/donate
Onion: http://cwtchim3z2gdsyb27acfc26lup5aqbegjrjsqulzrnkuoalq5h4gmcid.onion/
Code: https://git.openprivacy.ca/cwtch.im

Last Notes

2026-07-10 22:28:07 UTC

Wrapping up a very exciting week as we close out the 2026 Cwtch Hackathon!
This week we made amazing progress on a new iteration of peer-to-peer groups, and tackled some long standing maintenance tasks in preparation for the next version of Cwtch.
It has been a long time since the core team got together in person to hack on cwtch, and we leave this week feeling very excited about what happens next.
💜
https://cdn.fosstodon.org/media_attachments/files/116/898/017/998/460/474/original/e7362ea7ec8d8f7c.jpg

2025-10-30 17:45:15 UTC

Today we are releasing Cwtch 1.16!
Cwtch is a privacy-only p2p messenger based on @torproject v3 onion services.
The focus of this release was maintenance, including some important work actively improving dependencies.
As a knock on effect, Cwtch should no longer have issues on systems where memory tagging is enabled.
Plus performance improvements.
Changelog/Download: https://docs.cwtch.im/blog/cwtch-1-16
Please consider donating to @openprivacy so we can continue our mission to build better systems.

2025-08-28 19:59:38 UTC

Testers wanted: If you are using GrapheneOs (/want to use cwtch on GrapheneOs) we think the most recent nightly: https://git.openprivacy.ca/cwtch.im/cwtch-ui/releases/tag/v1.16.0 might have fixed a long standing crashing issue preventing Cwtch from running when memory tagging is enabled.

2025-02-18 21:44:40 UTC

Today we are releasing Cwtch 1.15.5!
Cwtch is a privacy-only p2p messenger based on @torproject v3 onion services.
This release is a small bugfixes update, with an upgraded bundled Tor, and a fix that prevented Cwtch 1.15.0+ from running out-of-the box on some linux systems
We also now have an experimental apt repository for Debian based systems!
Changelog/Download: https://docs.cwtch.im/
Please consider donating to @openprivacy so we can continue our mission to build better systems.