tools / Passwords & Privacy
Passphrase Generator (Diceware Style)
Build a passphrase from random words, the diceware idea from that xkcd comic. Easier to type and remember than a wall of symbols, and genuinely strong once you use enough words. Everything is generated locally with the browser's secure random source.
Easier to type and remember than random characters, and strong once you use enough words.
How it works
Entropy per word
Each word adds log2 of the list size in bits, drawn uniformly at random. Stack enough words and you pass any reasonable threshold, while still ending up with something you can actually type.
FAQ
How many words should I use?
Five is a sensible floor for important accounts, six or more for anything you really care about. The bit estimate updates as you change the count.
Does capitalising or adding a number help?
A little, but word count is what really moves the entropy. Add them if a site demands mixed characters.
