Password Generator

Create strong, cryptographically secure random passwords using client-side CSPRNG with customizable length and characters.

Generated Secure Password

Password Length: 16 characters

Character Sets

Uppercase (A–Z) Lowercase (a–z) Numbers (0–9) Symbols (!@#$%)

Avoid ambiguous characters (1, l, I, 0, O)

How to Use the Password Generator

Enter the required values in the fields above and click Calculate. All calculations are executed directly inside your web browser using proven mathematical formulas, ensuring instantaneous results and 100% privacy without transmitting your numbers to remote servers.

Mathematical Formula

Entropy E = L × log2(Pool Size) bits of cryptographic randomness.

Worked Example

A 16-character password with letters, numbers, and symbols provides over 95 bits of entropy.

Important Notes & Limitations

Never stored or transmitted over any network. Remember to save generated passwords in a reputable password manager.

Frequently Asked Questions

Are the generated passwords safe? ▼

Yes. Passwords are generated directly inside your browser using the cryptographic Web Crypto API (`crypto.getRandomValues`) and are never sent across the internet.