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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