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Secure & Decentralized Messaging
Federated, encrypted and peer-to-peer messaging protocols and clients.
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Signal
Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.
See siteSee docsMatrix Synapse
Synapse: Matrix homeserver written in Python/Twisted.
FreeNo authElement (formerly Riot)
A glossy Matrix collaboration client for the web.
FreeNo authMatrix.org (Synapse)
Matrix, the open protocol for secure decentralised communications
See siteSee docsWire
Collaborate without compromise with Wire, the trusted platform for millions worldwide.
See siteSee docsKeybase Chat
chat is now on Keybase, an open source app for encryption and cryptography.
See siteSee docsSignal Private Messenger API (Signal Service)
Specifications and software libraries for developers.
See siteSee docsThreema Work
Threema Work is the privacy-first communication solution for secure business messaging, confidentiality, compliance, and data protection.
See siteSee docsTox (decentralized chat)
Whether it's corporations or governments, there's just too much digital spying going on today.
See siteSee docsMumble (voice chat)
Mumble is a free, open source, low latency, high quality voice chat application.
See siteSee docsSignal Private Messenger (open source)
A private messenger for Windows, macOS, and Linux.
FreeNo authlibsignal
Signal's core cryptographic library.
FreeNo authSession
Decentralised private messenger with no phone number.
FreeNo authSimpleX Chat
Messenger with no user identifiers.
FreeNo authXMPP
Extensible open standard for instant messaging.
FreeNo authBriar
Peer-to-peer messenger that works without internet.
FreeNo authDelta Chat
Messenger that works over standard email.
FreeNo authMLS Protocol
IETF standard for group end-to-end encrypted messaging.
FreeNo auth