Strong password generator

Q: How do I remember such a password?

Don't — store it in a password manager. It creates and fills unique passwords automatically, so you only remember one master password.

Create a long, unique password in a second. Everything happens locally in your browser with a cryptographic generator — the password is never sent anywhere. Free and no sign-up.

Use the tool Free tools

No sign-upProcessed locallyFree forever

crypto.getRandomValuesRuns in your browser

Your password

0bit

Entropy —

Offline attack · 10 billion guesses/s: —
Online attack · 100 guesses/hour: —

Settings are remembered in this browser. Passwords are never stored.

Nothing you enter is sent to our server. We only count anonymous usage — which tool was used, never what you typed.

How it works

Why it is safe

Cryptographic randomness

Characters are chosen with crypto.getRandomValues — no predictable patterns and no bias.

Browser only

The password is created on your device. It is never sent to a server and never stored.

Guaranteed mix

The password always contains at least one character from every selected type.

Frequently asked questions

FAQ

Didn’t find your answer?

Ask us directly

Are passwords generated on a server?

No. The password is generated right in your browser with a cryptographic random number generator. It is never sent anywhere and never stored.

What makes a password strong?

Length and uniqueness. For most services 16–20 characters with mixed case, digits and symbols is plenty. The key is never reusing one password across sites.

How do I remember such a password?

Don't — store it in a password manager, which creates and fills unique passwords for you automatically.

Is it free?

Yes, completely free and no sign-up.

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