Mitsuzo

End-to-end encrypted pastebin with zero-knowledge password validation and self-destructing pastes.

Webfree

Mitsuzo is an end-to-end encrypted pastebin using client-side ChaCha20-Poly1305 encryption and Argon2id key derivation, with zero-knowledge password validation so the server never sees a paste's password or content. It offers self-destructing pastes with time and attempt limits, optional user accounts for paste-to-user encryption, and both a web UI and CLI client.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of Mitsuzo - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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