Password Generator - Strong & Secure Random Passwords

Passwords come from window.crypto.getRandomValues, the browser's Web Cryptography API, which draws on operating system entropy rather than predictable timestamps. The tool never uses Math.random, so output is not reproducible from a seed. That is the same class of randomness security software relies on.

Generation happens in browser memory, and nothing is uploaded, logged, or synced to an account. A password exists only in the page until you copy it or close or refresh the tab. Paste it into your password manager right away, since the tool cannot recover it later.

Security guidance generally recommends at least 16 characters for important accounts, mixing uppercase, lowercase, numbers, and symbols. The slider goes from 4 to 64 characters, so you can go longer for high-value logins. Length adds more strength than complexity alone, so favor a longer string when a site allows it.

It removes characters that are easy to confuse when read or typed, such as 1, l, I, 0, and O. That helps when someone has to copy a password by hand or read it off a screen. The tradeoff is a slightly smaller character pool, which matters little at longer lengths.

You control the uppercase, lowercase, number, and symbol toggles, so you can build a password that matches a site's rules. Turn off the sets a form rejects, then set the length to the maximum it accepts. Enabling more character types generally produces a stronger result.

The meter reflects length and character variety, giving a quick visual read on the generated string. It cannot judge whether a site stores passwords badly or whether an attacker already has your credentials. Use a unique password per account and pair it with two-factor authentication where available.