Password Generator

The Password Generator is a free random password generator that creates strong, unpredictable passwords in one click, right in your browser. Set the length and choose which character sets to include — uppercase letters, lowercase letters, numbers and symbols — and get back a password that's effectively impossible to guess or brute-force, with no account, signup or software install required.

It's built for the moment you're creating a new account and don't want to reuse (or slightly tweak) an old password — one of the biggest security mistakes people make. It's equally useful for generating a strong password for a home Wi-Fi router, a database user, an API key placeholder, or any place that needs a high-entropy secret but doesn't need it to be memorable, since it will live in a password manager rather than your head.

Passwords are generated using your browser's cryptographically secure random number generator — the Web Crypto API's crypto.getRandomValues — rather than a predictable pseudo-random function like Math.random(), which is not safe for anything security-related because its output can, in some cases, be predicted. Each character set toggle is enforced, so if you require symbols, the result is guaranteed to include at least one, not just statistically likely to. A 16-character password drawn from all four character sets has roughly 95 possible characters per position, giving well over 10^31 possible combinations — far beyond what any brute-force attack could exhaust in a human lifetime, even with dedicated cracking hardware.

Nothing is transmitted or stored — the password exists only in your browser tab until you copy it, and reloading the page clears it. Strong, unique passwords are your best defence against credential-stuffing attacks; pair this generator with a password manager and never reuse a password across sites.