Keygenie

A password generator that runs entirely in your browser.

EN RU

🔒

Passwords are never stored and never sent to a server. Everything is generated locally with crypto.getRandomValues(). There is no backend, no analytics and no external requests — they are blocked by the page's own CSP. Save the file and it works offline.

Length 20

Lowercase a-z Uppercase A-Z Digits 0-9 Symbols !@#$%

Exclude look-alikes O0oIl1| At least one of each type

Words 6

Separator

Capitalise River-Candle Add a digit Add a symbol

Length 6

Reject 1234, 1111 and birth years

Profile

These are typical rule sets, not the official policies of any particular company — site requirements change. If a password is rejected, switch to the Random tab and adjust it by hand.

Variants 3

This session

Kept in the tab's memory only and gone when you close it — nothing is written to disk.

How it works. Every character is drawn with crypto.getRandomValues(), discarding values that fall outside an exact multiple of the alphabet size. That keeps the distribution even, unlike a naive % pool.length, which quietly favours the start of the alphabet.

Strength is measured as entropy — log₂(alphabet) × length — rather than by rules like "has a capital, must be good". Cracking time assumes an offline attack on a stolen hash database at 10¹² guesses per second.

Check it yourself: all of the logic is in this page's source. No dependencies, nothing to trust but the file in front of you.