ToolsWaves

Password Generator

Generate strong, secure, random passwords. Customize length, character types, and generate multiple at once. Uses cryptographic randomness.

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About Password Generator

Strong passwords are the difference between an account that stays secure and one that gets compromised in the next data breach. This password generator produces cryptographically strong random passwords using the browser's built-in Web Crypto API โ€” the same source of randomness that authentication libraries themselves rely on. You control the length, the mix of uppercase, lowercase, numbers, and symbols, and whether to avoid ambiguous characters like O/0 or l/1.

Particularly useful for setting up new accounts, rotating compromised credentials, creating shared service accounts for teams, and generating recovery codes. The password never leaves your browser and is never sent to any server โ€” when you generate a password, it exists only in your clipboard until you paste it where you need it. The accompanying strength meter shows roughly how long the password would take to crack via brute force.

How to Use

1

Set the desired password length using the slider.

2

Toggle character types: uppercase, lowercase, numbers, symbols.

3

Choose how many passwords to generate at once.

4

Click 'Generate' and copy your password. Check the strength indicator.

Frequently Asked Questions

Are these passwords truly random?

Yes. This tool uses the Web Crypto API (crypto.getRandomValues) which provides cryptographically secure random numbers, the same standard used by password managers.

What makes a password strong?

A strong password is at least 12-16 characters long and uses a mix of uppercase, lowercase, numbers, and symbols. Longer passwords are exponentially harder to crack.

Are my passwords stored anywhere?

No. Passwords are generated entirely in your browser and are never sent to any server. Once you close the page, they're gone unless you copied them.

How is crack time estimated?

The crack time is estimated assuming a brute-force attack at 10 billion guesses per second (modern GPU cluster). Actual time depends on the attack method and hardware used.