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Privacy-first password manager NinjaBiba is a privacy-first password manager. Your vault is encrypted on your device with Argon2id and AES-256-GCM. The server stores ciphertext only. Your master password and vault encryption keys are derived in the browser and are never sent to ninjabiba.com. What the extension does • Unlock your encrypted vault in the popup • Detect login forms on websites (field kinds and hostname only — not the password you type) • Fill a matching login only after you choose an account. It does not inject passwords on page load • Offer to save a username and password when you submit a login or change-password form • Sync the encrypted vault with your ninjabiba.com account • Auto-lock after inactivity. You choose 5 minutes, 15 minutes, 30 minutes, 1 hour, 90 days, or never Use it with the web vault Create an account and manage logins at https://ninjabiba.com • Add, edit, delete, favorite, and folder your logins • Search title, username, URL, notes, and folder • Generate strong passwords (8–64 characters) with Web Crypto. Generated values are not stored until you save a login • Review a local security score for weak, reused, and old passwords. Score data stays on your device • Turn on authenticator (TOTP) MFA for your account on the web app How privacy works • Account email and a hashed account password for sign-in • An encrypted vault blob on the server — no plaintext site passwords • Optional authenticator secrets, encrypted at rest • No ads, no advertising SDKs, no sale of your data • Privacy policy (no sign-in required): https://ninjabiba.com/privacy Get started 1. Create an account at https://ninjabiba.com 2. Set a master password and unlock the vault 3. Add logins in the web vault, or save them when a site form is submitted 4. Open the extension, unlock, and choose an account to fill Current limits • Save prompts appear on HTML form submit. Sites that sign in with fetch or XHR and no form submit may not show a save prompt • If your account uses authenticator MFA, finish sign-in on ninjabiba.com first, then unlock the extension • The popup is for unlock, fill, lock, and sign-out. Full vault editing and the password generator are on the web app • Locking the web app does not lock the extension, and the reverse is also true
Sep 11, 2026
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