Download Canium
Install the desktop app for Windows or Linux, or use Canium in your browser.
Platforms
Everything you send is locked on your device before it leaves. Canium cannot read your messages, calls or files, and never sees your password.
Your conversations stay private against the computers of the future as well as today's. What is captured now cannot be unlocked later.
The web app gives you the same protection as the desktop app. Nothing is weaker in the browser.
Works in Chrome and Edge. Other browsers are not yet supported. For everyday use, install the desktop app. A macOS version is in progress.
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How It Works →
MLS, OPAQUE, and post-quantum key establishment, end to end.
Security →
Threat model, standards, and what the server never sees.