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CaxFish Messenger

Get the free messenger How privacy works

How it works

Keys are discovered. Messages stay private.

CaxFish helps clients find verified public keys. After that, the conversation is encrypted between the people chatting.

How CaxFish Messenger works Download the client, exchange public keys through CaxFish, then chat directly peer to peer using encrypted sessions. How CaxFish Messenger Works CaxFish helps clients find public keys. Your messages do not live on our servers. STEP 01 Download client Private key stays on your device. STEP 02 Public key lookup Only public keys are served. STEP 03 Encrypted P2P chat Message content is never stored. publish / fetch key send key to contact Encrypted messages travel peer to peer, not through CaxFish storage.
01

Download the client

Install the free Windows portable client and create your private key on your device.

02

Find public keys

The CaxFish key server only helps clients publish and fetch public keys for contacts.

03

Chat peer to peer

Clients use the keys to talk directly with encrypted sessions. Message content is not stored by CaxFish.

Alice client
Public key lookup No message content
Bob client
public key
public key
encrypted peer-to-peer chat
100% peer-to-peer Messages travel between users, not through a central chat database.
No message content stored CaxFish.com only helps clients discover public keys. It does not store conversations.
Public-key identity Contacts are anchored to RSA public keys, so identity is built around cryptographic keys.

Download access

Get CaxFish Messenger free

Enter your email to receive the Windows installer and product updates as we develop premium privacy features.

We use your email to send a verified download link and CaxFish updates. We do not store message content.

with Freedom comes Responsibility, The CA 3 No's apply to this service