Password Generator — Strong Random Passwords

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Strength—

Length

Uppercase (A–Z)

Lowercase (a–z)

Numbers (0–9)

Symbols (!@#$…)

Exclude ambiguous (0,O,l,1)

More Tools

Age Date Diff BMI Percentage Word Count Units Password Timer

About the Password Generator

Weak and reused passwords are the most common cause of account breaches. Our password generator creates truly random, cryptographically secure passwords using your browser's built-in security APIs — the same standard used in banking and security applications.

How the generator works

Passwords are created using crypto.getRandomValues(), part of the Web Cryptography API. This generates numbers that are truly unpredictable, unlike Math.random() which is not suitable for security purposes. Your character preferences are applied to the random values to build the final password.

Password strength guide

Weak — short, only one character type (e.g. lowercase only)
Fair — medium length, two character types
Good — 12+ characters, three character types
Strong — 16+ characters, all character types including symbols

Best practices

Use a unique password for every account. Enable two-factor authentication (2FA) wherever possible. Store your passwords in a trusted password manager such as Bitwarden, 1Password, or your browser's built-in password manager.

Frequently Asked Questions

Is this password generator secure?

Yes. Passwords are generated using the Web Cryptography API (crypto.getRandomValues), which uses a cryptographically secure pseudo-random number generator (CSPRNG). This is the same standard used in security software.

Are my generated passwords stored or sent anywhere?

No. All password generation happens entirely in your browser using JavaScript. No data is ever transmitted to a server, and nothing is stored anywhere.

How long should a strong password be?

Security experts recommend at least 16 characters for important accounts. Passwords of 12+ characters with mixed uppercase, lowercase, numbers, and symbols are considered strong by current standards.

What makes a password strong?

A strong password is long (16+ characters), random (not based on words or patterns), and uses a mix of uppercase letters, lowercase letters, numbers, and special symbols. Avoid dictionary words and personal information.

Should I use a password manager?

Yes. A password manager lets you use a unique, strong password for every account without having to memorise them. Use this generator to create passwords, then store them in a trusted password manager.