How do I create a strong random password?

Set the length and tick the character classes you want — uppercase, lowercase, digits and symbols. Longer passwords with more classes score higher; the strength and entropy update live as you tune the settings.

Can I generate several passwords at once?

Yes. Choose 1, 5, 10 or 25, optionally exclude ambiguous look-alikes like 0/O and 1/l/I, then copy one or download them all as a .txt file.

Are the generated passwords stored or sent anywhere?

No. Every character is drawn from crypto.getRandomValues in your browser, so passwords are unpredictable and never sent to a server — unlike many online generators.

Strong Password Generator — Free, Local, Crypto-Secure

Features

Draws every character from crypto.getRandomValues with rejection sampling, so the output is unbiased and unpredictable.
Generates up to 25 passwords at once and shows their strength rating and bits of entropy as you tune the settings.
Runs entirely in your browser — no password is ever sent to a server, unlike sketchy online generators.

How it works

Set the length slider and tick the character classes you want — uppercase, lowercase, digits, symbols.
Toggle "exclude ambiguous" to drop look-alikes like 0/O and 1/l/I, and pick how many to make (1, 5, 10 or 25).
Watch the strength and entropy update live, then copy a password or download them all as a .txt.

Frequently asked questions

How do I create a strong random password?: Set the length and tick the character classes you want — uppercase, lowercase, digits and symbols. Longer passwords with more classes score higher; the strength and entropy update live as you tune the settings.
Can I generate several passwords at once?: Yes. Choose 1, 5, 10 or 25, optionally exclude ambiguous look-alikes like 0/O and 1/l/I, then copy one or download them all as a .txt file.
Are the generated passwords stored or sent anywhere?: No. Every character is drawn from crypto.getRandomValues in your browser, so passwords are unpredictable and never sent to a server — unlike many online generators.

Your files never leave this page

Every conversion runs entirely in your browser using WebAssembly. There is no upload, no server-side processing, no analytics, and no cookies. Open DevTools → Network during the operation and you will see zero outbound traffic.

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Topics covered

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