Passphrase Generator
Generate Diceware-style passphrases that are secure against even determined attackers. Random words, maximum entropy.
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The XKCD Method for Passwords
Made famous by XKCD comic #936, passphrases use random words instead of random characters. They're easier to remember and type while providing excellent security.
Our generator uses the Diceware word list methodology, proven secure through decades of cryptographic analysis. Each word adds approximately 12.9 bits of entropy.
Passphrase Features
Cryptographically sound
Diceware Method
Based on the proven Diceware word list with 7,776 carefully selected words.
True Randomness
Words selected using cryptographic random number generation.
Entropy Display
See exactly how much entropy (security) your passphrase provides.
Multiple Lists
Choose from EFF word lists optimized for different use cases.
How It Works
Diceware methodology
Random Selection
Cryptographic randomness selects words from the word list.
Combine Words
Words are joined with your choice of separator.
Create Story
Form a mental image to remember your unique phrase.