Hey Product Hunt! 👋 I'm Jackson, the solo developer behind Spassword. I built this because I wanted a password manager where "zero-knowledge" is actually true, not just a slogan — your master password never leaves your device, and everything (passwords, passkeys, 2FA secrets) is encrypted with Argon2id + AES-256-GCM before it ever touches our servers. We literally can't read your vault, even if we wanted to. A few things I focused on: 🔐 Real zero-knowledge encryption — server only ever stores ciphertext ⚡ Autofill + save-password prompts, just like the big names 🎲 A proper cryptographically random password generator 🔑 Passkey support — Spassword can act as a software authenticator on sites that support it 📱 2FA codes (TOTP) built in, no separate authenticator app needed 🔍 One-click breach check against known leaked passwords (k-anonymity, so your password never leaves your device for this either) ⬆️ CSV import if you're switching from Chrome/Google Password Manager 👨‍👩‍👧 Family sharing — invite up to 5 members, share individual logins/passkeys/2FA with view or edit permissions, with real key rotation when you revoke access (not just a flag flip) 🌐 Free multi-device sync, works offline, and a full web vault at spassword.net if you don't even want to install anything It's 100% free, Chrome + Edge extension, and I'm actively building this — CSV import for the web vault and shareable "collections" are next on my list. Would love your feedback, bug reports, or just questions about how any of this works under the hood. I'll be around all day to answer!

Spassword - password manager

A password manager even we can't read

A password manager even we can't read