https://docs.cwtch.im/

Skip to main content
 
Cwtch LogoCwtch Logo
CwtchDocumentationSecurity HandbookDevelopers HandbookDevelopment Log
DonatePatreon
English

  * English
  * Espanol
  * Deutsch
  * Italiano

Download Cwtch

[knott]
CWTCH

Privacy Preserving Messaging

Get Started With Cwtch
 

Windows

 

Mac

 

Linux

 

Android

---------------------------------------------------------------------

Cwtch /kUtS/

Cwtch (/kUtS/ - a Welsh word roughly translating to "a hug that
creates a safe place") is a decentralized, privacy-preserving,
multi-party messaging protocol that can be used to build metadata
resistant applications.



Decentralized and Open

Participants in Cwtch can host their own safe spaces, or lend their
infrastructure to others seeking a safe space. There is no "Cwtch
service" or "Cwtch network". The Cwtch protocol is open, and anyone
is free to build bots, services and user interfacesand integrate and
interact with Cwtch.

Privacy Preserving

All communication in Cwtch is end-to-end encrypted and takes place
over Tor v3 onion services.

Metadata Resistant

Cwtch has been designed such that no information is exchanged or
available to anyone without their explicit consent, including
on-the-wire messages and protocol metadata.

---------------------------------------------------------------------

Videos


Cwtch Explainer

Tor State of The Onion 2024 Presentation

---------------------------------------------------------------------

Screenshots


Cwtch peer to peer chat
Cwtch group chat
 
Cwtch mobile contacts
Cwtch mobile group chat
Cwtch mobile settings
 
Docs

  * Introduction
  * Security Handbook
  * Developer Guide
  * Changelog

Community

  * Mastodon
  * Twitter

Contribute

  * Donate
  * Patreon
  * Source Code
  * Download

Copyright (c) Open Privacy Research Society