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Strength—
  • 100% Free
  • No Sign-Up
  • No Credit Card
  • No Free Trial
  • No Pro Tier
  • No Watermarks

Nothing is uploaded. Just open it and start.

A strong password generator that runs entirely in your browser

Customize length and character types, check strength in real time, and copy your new password with one click. No sign-up, and nothing ever uploaded to a server.

Fully customizable

Set the exact length and choose any mix of uppercase, lowercase, numbers, and symbols.

Cryptographically secure

Built on the Web Crypto API for unpredictable, high-entropy randomness — not Math.random().

Live strength meter

See an instant entropy-based strength rating as you adjust length and character types.

100% private, one-click copy

Passwords never leave your browser. Copy the result with a single click when you're ready.

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Frequently asked questions

How random are the generated passwords?
Passwords are generated using the Web Crypto API's cryptographically secure random number generator (crypto.getRandomValues), not Math.random(), so results are unpredictable and suitable for real account security.
Is my password sent to a server?
No. Every password is generated and displayed entirely in your browser. Nothing is ever transmitted, logged, or stored — only your generator settings (length and character types) are saved locally so they're remembered next time.
What does "exclude ambiguous characters" do?
It removes characters that are easily confused with one another in many fonts — like l, 1, I, O, and 0 — which is useful if you'll need to type or read the password aloud.
How is password strength calculated?
Strength is estimated from entropy: password length multiplied by log2 of the number of possible characters. This reflects how many attempts a brute-force guess would need — the standard measure for a randomly generated password.
How long should my password be?
For most accounts, 16 characters or more with all character types enabled gives a very strong password. Use the maximum length your account supports for your most sensitive accounts.
Is the Password Generator really free?
It is. No sign-up, no payment details, no expiry date, and no upgrade prompt hiding the useful parts. Every length and character option is available, and there's no cap on how many passwords you generate. The only revenue here is one modest ad slot on the page.
Do I have to create an account first?
No. There's no account system at all, so there's nothing to sign up for and nothing to install. Open the page and a fresh password has already been generated for you.