Briar
Open Source GPL-3.0Secure messenger for activists and journalists with Tor support
Description
Briar is a highly secure messenger specifically designed for activists, journalists, and anyone who needs secure communication. Messages are synchronized via the Tor network, Wi-Fi, or Bluetooth and can even be transmitted without an internet connection. Briar stores all data encrypted on the device and offers blogs, forums, and private groups. The project is developed by academic security researchers and has been extensively audited.
Preview
Platforms
Android Linux
Replaces the following proprietary tools
WhatsApp → Briar
Slack → Briar
Microsoft Teams → Briar
Categories
Tags
#messenger
#tor
#sicherheit
#aktivismus
#p2p
#offline
#bluetooth
Similar Tools
Element/Matrix
Decentralized messenger with end-to-end encryption based on Matrix
Apache-2.0 ●● Medium Self-hostable
WhatsApp Slack Microsoft Teams
Last: Feb 2026 11.5k
View details →
Signal
The gold standard for secure private communication
AGPL-3.0 ● Easy
WhatsApp Slack Microsoft Teams
Last: Feb 2026 14.5k
View details →
XMPP/Prosody
Open messaging protocol with the lightweight Prosody server
MIT ●●● Advanced Self-hostable
WhatsApp Slack Microsoft Teams
Last: Feb 2026 1.2k
View details →