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JamiBriar
Free

Free software under the GPLv3 or later. A GNU project with no paid tier.

 Free

Free and open source under the GPL.

Windows, macOS, Linux, Android Linux, Android
  • Completely peer to peer, with no server relaying data between users
  • No phone number or email needed to create an account
  • Works with no internet at all, over Bluetooth or local Wi-Fi
  • No central server and no phone number or email needed
  • Peer-to-peer delivery means messages to an offline device wait until it reconnects
  • Connection reliability varies more than with a server-relayed service
  • Currently in maintenance mode, with limited new development
  • Both devices must be online at the same time to exchange messages
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-3.0
No account needed Not stated if an account is needed
Needs internet Not stated if it works offline

Checked September 21, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.