Whisper

End-to-end encrypted messaging the server can't read — even with the backups.

Whisper conversations open on a lock: nothing decrypts until you enter your passphrase in your browser. Messages are encrypted client-side with X25519 (nacl.box) — the server stores and relays ciphertext only.

Your secret key is wrapped with Argon2id and stored as opaque ciphertext: zero-knowledge key escrow. A one-time 128-bit recovery code is the only way back if you lose the passphrase. Lose both, and the messages are gone — by design, not by accident.

Client-side X25519 encryption — the same class of design as Signal
Argon2id-wrapped, zero-knowledge key escrow
One-time 128-bit recovery code, shown once
Recipients come from your connections — no phone numbers to trade
The server never sees your passphrase or your keys

A 60–90s walkthrough of Whisper, recorded on the real product. Also on our own video host — no YouTube required.

It's connected

Whisper runs on the same identity, audience and storage as everything else in the suite — which is why it does things standalone tools can't: your content shows up on your public profile, your calendar links to your meetings, your compose pulls from your contacts.