Tool · Security
Generate passwords, passphrases and IDs
Random passwords and passphrases with an honest strength estimate, and UUIDs in bulk. They are made in your browser from its own secure random source and never sent anywhere.
- Your passwords go to
- Works offline
- Yes, once it has loaded
- Account
- None, and it is free
- Handles
- Passwords, passphrases, UUIDs, hex keys and PINs
How to generate passwords, passphrases and IDs
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01Choose what to make
A password, a passphrase, UUIDs, a random hex key or a numeric PIN.
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02Set the length and the characters
The strength meter shows the entropy in bits as you change them.
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03Copy or download them
One at a time, all at once, or as a .txt file.
Questions about Password & IDs
Are the passwords truly random?
Yes. They come from your browser’s cryptographic random number generator, the same source it uses for encryption keys.
How strong should a password be?
The meter shows entropy in bits. Above about 80 bits is beyond any realistic attempt to guess it; a 20-character password from the full character set is well over 120.
Is a passphrase as good as a password?
For the same entropy, yes, and it is easier to type and remember. Add words until the meter is where you want it.
Are generated passwords stored or sent anywhere?
No. They are made on your device and exist only on this page until you copy them. The browser blocks this page from making any network request.