PRIVATE MESSAGING WITHOUT AN ACCOUNT

Zerion is a free and open-source private messenger built to minimize metadata and remove centralized messaging infrastructure.

No phone number. No email. No user account. No central messaging server.

Each device runs its own Tor onion service and communicates peer-to-peer over Tor. Zerion doesn't operate a central messaging server between you and the people you communicate with.

PRIVACY BEYOND MESSAGE ENCRYPTION

• Communication routed through Tor
• No phone number or email required
• No central messaging server
• No telemetry or analytics
• No advertising or tracking
• Open source under GPLv3
• Hybrid post-quantum cryptography

PRIVATE MESSAGING & CALLING

Send end-to-end encrypted messages, photos, videos, voice notes and documents. Create private groups and channels, or make voice and video calls over Tor.

Calls are peer-to-peer through Tor without a central VoIP server, STUN or TURN.

POST-QUANTUM PROTECTION

Zerion combines established cryptography with NIST-standardized post-quantum algorithms. Cryptographic key material is continually refreshed as conversations progress, providing additional protection against future cryptographic threats.

SELF-CUSTODIAL BITCOIN & MONERO

Zerion includes self-custodial Bitcoin and Monero wallets. Your wallet keys remain on your device and Zerion never takes custody of your funds.

BUILT FOR PEOPLE WHO NEED PRIVACY

Zerion is designed for anyone who doesn't want a third party sitting between their private conversations — including journalists, sources, activists, lawyers and people living under censorship.

SECURITY & PRIVACY FEATURES

• Encrypted local storage
• Disappearing messages
• Screenshot protection
• Private notifications without message previews
• Optional hardened security protections
• Encrypted Vault for passwords, notes and private files
• Open-source code available for public inspection

CHANNELS

Create public or private channels with optional discussion threads. Subscribers do not receive a list of other subscribers.

OPEN SOURCE

Privacy shouldn't be a marketing promise. Zerion's source code is public so its implementation can be inspected, challenged and improved.

Free and open source. GPLv3.

Website: https://zerion.chat
Source: https://github.com/zerionproject/Zerion
F-Droid: https://f-droid.org/packages/com.professor.zerion/