About

purplekey.info is a free password generator that runs entirely in your browser.

What it does

The Password Generator creates strong, random passwords on demand. You choose the length and which character types to include — uppercase, lowercase, numbers, and symbols — and a fresh password is generated instantly. A strength meter estimates the entropy and how long the password would take to crack.

How it works

Passwords are produced with crypto.getRandomValues(), the cryptographically secure random number generator built into modern web browsers — the same class of randomness used for secure connections. Generation happens locally on your device. Nothing you generate is sent over the network, stored, or logged.

Why we built it

Reused and human-chosen passwords are one of the most common causes of account compromise. We wanted a fast, no-sign-up, no-nonsense tool that anyone can use to create a unique password for every account — without wondering whether the website is quietly keeping a copy.

Who makes it

purplekey.info is an independent project maintained by a small team that cares about practical online security. We welcome feedback — see the Contact page.

How it stays free

The site is supported by advertising. Please review our Privacy Policy for details on cookies and third-party ads, and our Terms for conditions of use.