Passphrase / Diceware Generator

Generate secure, memorable multi-word passphrases using Diceware principles
This free online passphrase / diceware generator runs in your browser and is part of our Generators collection.

Passphrase / Diceware Generator

Generate highly secure, human-memorable multi-word passphrases using cryptographic randomness (Diceware principles) with customizable separators and entropy analysis.

-
Estimated Entropy: 64.6 bits
Brute Force Difficulty: Over 10,000 centuries

Passphrase Options

Alternative Passphrase Suggestions

Why Passphrases Beat Random Passwords

  • XKCD Diceware Principle: A 5-word passphrase like Correct-Horse-Battery-Staple has ~65 bits of entropy, which is harder for supercomputers to crack than a short gibberish password like Tr0ub4dor&3.
  • Human Memory: Humans remember visual storylines and words far better than random ASCII symbol strings.
  • Randomness is guaranteed using the browser's native cryptographic crypto.getRandomValues().

More Generators

Explore related tools in the same category to solve adjacent tasks faster.

Password GeneratorGenerate secure random passwordsQR Code GeneratorGenerate QR codes from textBarcode GeneratorGenerate barcodes in various formatsRandom Number GeneratorGenerate random numbers in a rangeUUID GeneratorGenerate UUIDs (v4)