Zero-Knowledge Architecture
Your messages are encrypted in your browser before reaching our servers. We can't read your messages—and neither can anyone else without your keys.
Guest Access
Send encrypted messages to anyone, even if they don't have an account. Recipients receive a secure link—no signup required.
Self-Hosted
Deploy on your own infrastructure with Docker. Full control over your data, compliance requirements, and customization.
Message Controls
Set expiration times, read limits, and password protection. Recall unread messages. Know when your messages are read.
Modern Authentication
Support for passkeys, WebAuthn security keys, TOTP, and SSO with Google, Microsoft, and SAML providers.
Enterprise Ready
Multi-tenancy, audit logging, GDPR compliance tools, rate limiting, and customizable branding for organizations.