Estimate password strength and generate strong passphrases — entirely in your browser.
What you'll walk away with. Instant feedback on passphrase strength and what to change.
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Type a password below. Everything runs in your browser — nothing is sent to our servers, logged, or stored.
Strength meter appears as you type.
Built from the EFF long wordlist. A four-word passphrase gives roughly 51 bits of entropy; five gives roughly 64. Five or six is the sweet spot for accounts you log into rarely.
This tool runs entirely in your browser. We never see, log or store anything you type here.
