Zerion

Zerion is a private messenger. Online messaging runs over Tor, so your IP address stays hidden from the people you talk to and from the Tor relays in between (your provider can see you use Tor). There's no phone number, no email, and no account on anyone's server. Your data lives encrypted on your own device; no Zerion server keeps a copy.

One-to-one, group and mesh messages are end-to-end encrypted with hybrid post-quantum cryptography: today's proven algorithms together with the new NIST quantum-resistant ones. Channels and account transfer use Tor and classical cryptography. Keys move forward as you talk, so a key taken today cannot decrypt messages recorded earlier. If large quantum computers arrive sooner than expected, the content of past messages stays protected.

WHAT YOU CAN DO

• One-to-one chats, end-to-end encrypted

• Group chats up to a few dozen people

• Voice calls over Tor, on by default, plus opt-in beta video calling

• Send photos, videos, voice notes, and documents

• Disappearing messages, with an optional default timer for new chats

• Stickers

• Introduce two of your contacts to each other, securely

• A built-in vault for passwords, notes, and private files, with search and sort

• Back up your account to an encrypted file, or move it to a new phone over Tor

• Channels, a one-to-many broadcast layer with optional discussion threads

• Translated into more than 35 languages

CHANNELS

One person writes, many people read.

• Public channels: anyone with the invite link can subscribe

• Private channels: only people with the private invite link can read

• Discussion threads: the owner decides, per channel, whether subscribers can reply

• Reactions, pinned posts, and attachments