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Password Generator
Create strong random passwords using your browser's cryptographic random source. Nothing is sent anywhere, nothing is logged, and nothing is stored — close the tab and the passwords are gone.
How to use it
- Choose the length. Sixteen characters is a sensible default; longer is better where you can.
- Pick the character sets you need, and how many passwords to generate.
- Press Generate, then Copy. Save it into your password manager straight away.
Why it stays private
A password is only as private as the least trustworthy place it has been. Generating it in a page that makes no network requests means the only copy that has ever existed is the one in front of you. The generator also deliberately guarantees that at least one character comes from each set you select, rather than hoping the random draw covers them.
Questions
How strong are these passwords?
A 16-character password drawn from the full set of letters, digits and symbols has roughly 100 bits of entropy, which is far beyond what is feasible to brute-force. Length matters more than character variety: 20 letters-only characters beat 12 mixed characters.
Should I use a password manager?
Yes. Generated passwords are only useful if you can store and retrieve them reliably, and human memory is not up to one strong unique password per site. A password manager also removes the temptation to reuse.
What does "allow look-alike characters" change?
By default the generator omits characters that are easy to confuse when reading from a screen or a printout — 0 and O, 1 and l and I, and similar. Enabling the option puts them back, which slightly increases entropy but makes manual transcription more error-prone.