Window Cat

A cute cat drops by the edge of your browser now and then. It peeks in and blinks at you, or strolls along the bottom of the screen, sits down, grooms a paw and wanders off. Click it to pet it. Ring the bell if you want one right now.

A Manifest V3 Chrome extension with no build step, no runtime dependencies, and no network requests of any kind.

Privacy

Window Cat collects nothing and sends nothing anywhere. There are no accounts, no analytics and no telemetry. Every cat is drawn in code as SVG and every sound is synthesised with the Web Audio API, so there is nothing to fetch.

Read the full privacy policy, or see exactly what the extension asks your browser for and why, permission by permission, on the permissions page.

Checking it for yourself

You do not have to trust any of this. Open DevTools, switch to the Network tab, and use the extension for as long as you like: it makes no requests, because there is nothing for it to fetch. Every cat is drawn as SVG in code and every sound is synthesised as it plays.