Password Generator

Create strong random passwords with full control over characters.

Generate a cryptographically random password of any length, with the exact character types the site you are signing up to accepts.

Select at least one character type

Length20 characters
Strength · Excellent~129 bits of entropy

How the password generator works

  1. 1Set the length — 16 characters or more is recommended.
  2. 2Choose whether to include numbers and symbols.
  3. 3A password is generated with your browser's cryptographic randomness.
  4. 4Check the strength indicator, then copy it into your password manager.

Frequently asked questions about the password generator

Are the passwords really random?+

Yes. They are produced by your browser's crypto.getRandomValues API, the same cryptographically secure generator used for encryption keys - not by a predictable Math.random sequence.

Is the password sent anywhere?+

Never. It is generated on your device, exists only in the page, and disappears when you close the tab. Nothing is logged or transmitted.

How long should a password be?+

Use at least 16 characters with mixed types for important accounts. Length matters more than complexity: a long random password is far harder to crack than a short one full of symbols.

Is this tool free to use?+

Yes, completely. There is no account, no trial, no watermark and no daily limit. Data Wave Cloud is funded by unobtrusive advertising so the tools stay free permanently.

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