Passphrase Generator (Diceware)

Passphrase Generator (Diceware) creates memorable-yet-strong passphrases from several cryptographically random words, with options for word count, separators, capitalization, and numbers, plus a live entropy and crack-time estimate. It runs entirely in your browser.

Generate strong passwords you can actually remember. Instead of random symbols, a diceware-style passphrase strings together several random common words — easy for a human to recall but extremely hard for a computer to guess. Choose how many words, a separator, capitalization, and whether to add a number, and see a live estimate of the passphrase’s entropy (bits) and how long it would take to crack. Words are chosen with your browser’s cryptographically secure random generator, and nothing is ever sent anywhere.