Password Generator

Generate strong, secure random passwords

Strength
16

How to Generate a Strong Password

Creating a strong password is one of the simplest ways to protect your online accounts. Use this tool to instantly generate cryptographically secure passwords tailored to your needs:

  1. Set your desired length using the slider. Longer passwords are exponentially harder to crack -- we recommend at least 16 characters.
  2. Choose character types: enable uppercase letters, lowercase letters, numbers, and symbols for maximum entropy.
  3. Click Generate or simply adjust settings -- a new password is created automatically.
  4. Copy your password and store it in a password manager.

What Makes a Password Strong?

A strong password combines three key properties:

  • Length: Each additional character multiplies the number of possible combinations. A 16-character password is billions of times harder to crack than an 8-character one.
  • Character variety: Using uppercase, lowercase, numbers, and symbols increases the pool of possible characters per position, making brute-force attacks impractical.
  • Randomness: Human-chosen passwords follow predictable patterns. This tool uses your browser's crypto.getRandomValues() API -- the same cryptographic random number generator used by security software -- to ensure true randomness.

Frequently Asked Questions

Is this password generator secure?

Yes. Passwords are generated entirely in your browser using the Web Crypto API (crypto.getRandomValues()), which provides cryptographically secure random numbers. No data is sent to any server.

Are my passwords stored?

No. Generated passwords exist only in your browser's memory and are never transmitted, logged, or stored anywhere. Once you close or refresh the page, they are gone. We recommend copying your password into a trusted password manager immediately.

How long should my password be?

We recommend at least 16 characters for general use and 20+ characters for high-security accounts (banking, email, password manager master passwords). With all character types enabled, a 16-character password has over 1030 possible combinations.