tool
Passphrase Generator
Diceware-style passphrases: words picked at random with the browser's cryptographic generator (crypto.getRandomValues) and rejection sampling to avoid bias. Easy to remember, hard to guess.
Your passphrase
…
Separator
Entropy
— bits
Calculation
—
Length
—
Entropy is words × log₂(wordlist size). A random two-digit number adds about 6.6 bits; capitalizing every word adds essentially nothing (it is a fixed pattern) and is not counted. Six words from this list exceed 68 bits, enough even against offline attacks.
Runs entirely in your browser — nothing is sent to any server.