Password Generator

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Strong Password Generator

This generates random passwords using your browser's cryptographically secure random number generator (crypto.getRandomValues), not Math.random() — the difference matters, since Math.random() is predictable enough that it should never be used for anything security-related.

Features:

  • Adjustable length: From 4 to 64 characters.
  • Character set control: Toggle uppercase, lowercase, numbers, and symbols independently.
  • Strength indicator: A quick estimate based on length and character variety.
  • Client-side only: Generated passwords are never transmitted or stored.

1. Length Beats Complexity

A 20-character password using only lowercase letters is harder to brute-force than an 8-character password using every character type. If you're choosing between a longer, simpler password and a shorter, more complex one, take the length.

2. Use a Password Manager

Generating a strong password is only half the problem — the other half is not reusing it. A password manager lets you use a unique, maximum-length password for every account without needing to remember any of them.

How long should my password be? At least 12 characters for most accounts, 16+ for anything sensitive. Length matters more than complexity.
Is this generator actually secure? Yes. It uses crypto.getRandomValues, the browser's cryptographically secure random number source, not Math.random().
Are these passwords stored or sent anywhere? No. Everything happens locally in your browser. Nothing you generate here is transmitted, logged, or stored.

Use at least 16 characters with all four character types for important accounts.

100% client-side — nothing generated here is ever transmitted.

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