Password generator

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Password generator

Random passwords drawn from your browser's cryptographic RNG (crypto.getRandomValues, rejection-sampled so no character is more likely than another). The generator runs entirely on this page — there is no request, no log and no server that ever sees what it produced.

Your password

…

Strength

Excellent

Entropy: 129 bits
Alphabet: 88 chars
Offline brute force: ~1.2e20 years

Estimated against a fast offline rig at 10¹¹ guesses per second — a floor, not a promise.

Settings

Length20

Characters

a–zA–Z0–9!@#$

RulesAvoid look-alikesDrops I l 1 O 0 o — kinder to anyone typing this from a screen.Distinct charactersNever reuses a character. Shortens the searchable alphabet, so it costs a little entropy.

Rule of thumb

Length beats cleverness. A long password from a wide alphabet is stronger than a short one tortured with substitutions, and a password manager means you never have to type either.

One per account

Reuse is what turns one breach into all of them. Generate a fresh one per site, and keep a second factor on anything that holds your email or your money.

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