Awesome Open Source
Awesome Open Source


A decentralized end-to-end encrypted messaging app.

Download latest release

A peer-to-peer end-to-end encrypted messaging app. Implements the secure signal protocol for the end-to-end encryption of messages and PGP for identity verification and authentication. This approach not only protects against man-in-the-middle attacks but removes the need for in-person verification like with other E2E encryption apps (WhatsApp, Signal,...) where identity keypairs are generated on a per-device basis and each has to be verified manually in-person.

Learn more at


  • [x] End-to-end encrypted messaging
  • [x] Peer-to-peer messaging
  • [x] Sending images
  • [x] Sending files
  • [x] Dark Mode
  • [ ] Offline messaging
  • [ ] Local encryption

You are welcome to open pull requests to help implement the features still to do!


macOS 10.10+, Linux, and Windows 7+ are supported (64-bit only).


Download the .dmg file.


Download the .AppImage or .deb file.

The AppImage needs to be made executable after download.


Download the .exe file.


Needs the Ciphora Server as well (


Clone the repos

$ git clone --recurse-submodules
$ git clone

Install deps for both repos

$ yarn


For faster dev, run the bundler (webpack)

$ yarn run bundler

In a new tty, run the app

$ gulp

To test the app locally with another app, just run a second instance in a new tty

$ gulp

N.B. on macOS, you may be prompted to allow incoming connections everytime you run it. Unfortunately the only way to make that go away currently is to disable your firewall temporarily.


$ npm run release

After Travis finishes building your app, open the release draft it created and click "Publish".

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