Cockatoo

Secure password aggregator - a simple tool that can derive strong passwords for your numerous web accounts. From now on a single secret gesture is all you need to remember. By using a cryptographic hash function and additional information you provide (the site name and, optionally, the hash salt), this extension turns your single secret gesture (or a master-password) into a particular password for any website you need. Then, it just puts the result in an active input field in your open browser tab. Everything works in a fully autonomous manner on your device - it doesn't keep information neither locally nor sends it anywhere.

Screenshots from Chrome Web Store