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Security

Strong Password Generator

The Strong Password Generator creates cryptographically secure random passwords using the browser's native crypto.getRandomValues API. You choose the length and which character sets to include, and each password is generated locally on your own device, so it is never transmitted, logged or stored anywhere.

Last updated · Free, no signup

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How does a strong password generator work?

A strong password generator selects characters from enabled lowercase, uppercase, digit, and symbol sets using a cryptographically secure random source. Length and alphabet size determine the theoretical search space, so a long independently generated password is more resistant to guessing than a memorable pattern with superficial substitutions.

This implementation uses crypto.getRandomValues locally and supports lengths from 4 to 64 characters. With all sets enabled the alphabet contains 88 symbols, but actual account security still depends on unique use, safe storage, multi-factor authentication, and the site's own password handling. Use a password manager rather than memorizing repeated variants.