Security Tools

Passphrase Generator

Built from four random dictionary words instead of a jumble of characters — easier to type and remember, hard to guess.

Generated passphrase
—
Entropy
0bits —
Offline attack (10¹⁰ guesses/sec)
—
Online attack (10³ guesses/sec)
—
Number of words
4
Each additional word adds roughly 11 bits of entropy.
Separator characters
One is chosen at random for each gap. More characters here means more entropy per gap.
Capitalization
Randomized capitalization adds one bit of entropy per word.
Append a random number
Digits
2
Every value here comes from window.crypto.getRandomValues(), the browser's cryptographically secure random number source — not Math.random(), which is predictable and unsuitable for secrets. Generation happens entirely on your device: nothing is transmitted, logged, or stored.

2,263-word list · ~11.14 bits/word · client-side only