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Password generator and strength checker

Generate strong passwords using your browser’s cryptographically secure random generator. Nothing is sent or stored, and the strength is shown in bits of entropy.

Live resultUpdates as you type

Press “Generate password” to see the result here.

How do I use the password generator and strength checker?

What makes a password strong?

Strength comes from length and randomness. A random 16-character password, or a passphrase of five random words, would take attackers an impractically long time to guess. What weakens passwords is predictability: names, dates, keyboard patterns, common substitutions such as @ for a, and reusing the same password on several sites.

How should a business manage passwords?

  • Use a business password manager with shared vaults for team accounts.
  • Turn on two-factor authentication everywhere, especially email, domain registrar, hosting, banking and social media.
  • Give each person their own login rather than sharing one account.
  • Remove access the day someone leaves.
  • Keep domain, hosting and email admin accounts under company control, not an agency's or a former employee's.

These steps prevent most of the account takeovers we are asked to clean up.

Password generator and strength checker: frequently asked questions

How long should a password be?

At least 16 characters for important accounts. Length adds more strength than symbols do.

Is it safe to generate passwords online?

This tool runs entirely in your browser and sends nothing. You can even use it offline once the page has loaded.

Is a passphrase better?

Four or more random words make long, memorable passwords.

Are generated passwords stored?

No. They are generated in your browser and never sent anywhere.

Should I use symbols?

They add strength, but length matters more.

How should I store passwords?

In a password manager, with a unique password for every account.

How often should I change passwords?

When there is a sign of compromise. Unique passwords and 2FA matter more than frequent changes.

What is two-factor authentication?

A second step, such as an app code or security key, required after your password.

Is the randomness secure?

Yes. It uses the browser’s cryptographically secure random generator.

Does it support Arabic text?

Yes. Text is processed as Unicode, so Arabic and other scripts are handled correctly.

Learn more