Yes — Cipher is 100% free with no sign-up, no account, and no ads. Generate unlimited passwords at no cost, forever.

Cipher uses the browser's built-in Web Crypto API (CSPRNG — cryptographically secure random number generator). Your passwords are generated entirely in your browser, never sent to any server, and never logged or stored.

A strong password is at least 16 characters long and mixes uppercase letters, lowercase letters, numbers, and special symbols. Avoid dictionary words, repeated characters, and personal information like birthdays or names.

For most accounts, 16–24 characters is a solid choice. For high-security accounts like banking or email, aim for 32+ characters. Cipher supports lengths from 6 to 128 characters.

Yes. Cipher's Secure Share feature encrypts your password with AES-256-GCM in the browser and generates a one-time-style link. The encryption key lives only in the URL fragment — it's never sent to any server. You can also add a passphrase for double protection, and set the link to expire.

Yes. Once the page loads, all password generation runs locally using the Web Crypto API. No internet connection is needed.