EFF Wordlist • 7,776 Words • Secure & Memorable
Diceware is a method for generating strong, memorable passphrases by picking random words from a fixed wordlist — traditionally by rolling five 6-sided dice per word (65 = 7,776 possible outcomes), then looking up the resulting number in a numbered wordlist. This tool uses the official EFF Large Wordlist, published by the Electronic Frontier Foundation specifically for this purpose — 7,776 words chosen to be easy to spell, easy to type, and memorable, while avoiding awkward or unpleasant combinations.
Each word contributes exactly log2(7,776) ≈ 12.9 bits of entropy to the passphrase, so a 6-word passphrase has roughly 77.5 bits of entropy — comparable to or stronger than a random 12-character password using the full keyboard character set, while being dramatically easier to remember and type. Words are picked using your browser's cryptographically secure random number generator (crypto.getRandomValues), the same standard used throughout this site's security tools, with rejection sampling to avoid the subtle bias that a naive modulo operation would introduce.
All generation happens locally in your browser — nothing is ever transmitted anywhere.