Password Generator
Generate strong passwords, passphrases and PINs locally — with strength and crack-time estimates.
Passwords are generated in your browser. Nothing is sent to or stored on a server, and the output disappears when you close the page.
Strength: Very strong (entropy ≈ 97 bits)
Estimated brute-force crack time: about 331 billion years (assuming an offline attack at 10 billion attempts per second)
What is this tool?
A free password generator with three modes: random strings with configurable character sets, memorable passphrases based on the EFF word list, and numeric PINs. Ten candidates are shown at once so you can pick one you like.
How to use
- Pick a mode: random string, passphrase or PIN.
- Adjust length and character options to match the site’s requirements.
- Copy the result, or regenerate until you are happy. Use Hide to mask it on screen.
Use cases
- Creating a strong unique password for a new account.
- Generating a memorable passphrase for a master password.
- Producing a numeric PIN with 4–12 digits.
Notes
- Everything is generated locally; nothing is transmitted or stored.
- Excluding ambiguous characters (I, l, 1, O, o, 0) helps when passwords are read aloud or transcribed.
FAQ
Are the generated passwords stored or sent anywhere?
No. Passwords are generated with your browser's cryptographically secure random source and never leave your device. The output disappears when you close the page.
What does the strength meter mean?
Strength is based on entropy in bits, estimated from the character sets and length you choose. The crack-time estimate assumes an offline brute-force attack at 10 billion attempts per second.
What is a passphrase?
A passphrase is a sequence of random words (from the EFF word list) joined by a separator. Long passphrases are both strong and easier to remember than random strings.
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