Security

Zero-knowledge by design.

Your vault is encrypted on your device before it ever leaves it. The keys are yours alone — StowPass is built so that even we can't read your data.

Your device
Encrypt
AES-256, keys derived here
→
In transit
a7F9…c1E
Only ciphertext moves
→
Our cloud
Store blobs
Unreadable without your key

End-to-end encryption

AES-256-GCM, sealed on your device. Sync only ever carries ciphertext — no plaintext ever reaches our servers.

Passwordless by default

Passkeys and WebAuthn replace the shared secret. Nothing to phish, nothing to reuse, nothing to leak in a breach.

Open & independently audited

Our cryptography is open source and reviewed by third-party security firms. Standards, not black boxes.

The honest part

What StowPass can never see.

Zero-knowledge isn't a slogan — it's an architecture. Because your keys stay with you, whole categories of data are simply out of our reach.

✕Your passwords, passkeys, and notes
✕The sites and accounts in your vault
✕Your encryption keys — they never leave your device
✕Enough to be worth stealing, if we're ever breached

Security you don't have to think about.

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