A private, client-side password generator. Your master password + a domain name produces a unique, strong password — deterministically. Nothing is stored on any server. Nothing leaves your device.
- Enter your master password
- Enter a domain name (e.g.
gmail-personal,github-work) - Choose a password length
- Click Generate
The same inputs always produce the same password, so you never need to store passwords anywhere. Just remember your master password and the names you used.
SecurePass uses PBKDF2 with 100,000 iterations via the Web Crypto API — the same cryptographic primitive used by 1Password and Bitwarden for key derivation.
- Deterministic password generation — nothing to sync, nothing to back up
- PIN and biometric app protection
- Domain history with smart categorization
- Integrated breach checking
- PWA support — install to your home screen
- Works offline — no network required
- Zero data collection — no servers, no tracking, no cookies
index.html — Semantic HTML
styles.css — Design system (warm monochrome, Geist Sans, Phosphor Icons)
app.js — All application logic
sw.js — Service worker for offline support
No build tools required. Open index.html in any modern browser.
MIT