Deterministic password manager Chrome extension. No vault, no sync, no cloud — just an algorithm.
Keyfount does not store your passwords. Instead, it derives them, on demand, from three inputs you provide:
master_password + site_domain + email ──► PBKDF2-SHA256 (100 000 it.) ──► your site password
The same three inputs always produce the same password. Lose your master password and your passwords are unrecoverable — there is no backup, by design.
- 🔐 Deterministic generation using PBKDF2-SHA256 (100 000 iterations)
- 🧩 Two output modes: Random Characters (configurable) and Memorable Passwords (EFF wordlist)
- 🌐 Per-site preferences (length, character classes, counter)
- ⌨️ Inline UI on password fields — generate without leaving the page
- 🔒 Optional PIN to encrypt the master password locally (opt-in, with clear warning)
- 🧪 100 % open source, auditable algorithm
🚧 Work in progress. This extension is under active design and not yet usable. See the design specs once published.
If you discover a security issue, please do not open a public issue. See SECURITY.md.
See CONTRIBUTING.md.