Show HN: UI Copilot – AI web design feedback as part of the browser

Hey HN!

My latest creation, a BYO-API key web design copilot, powered by Google Gemini.

Activate the extension on any web-page (including localhost) then simply draw a box around any portion of the site you want instant design feedback on.

This tool is completely free during a very long Beta period, potentially free forever, whilst I refine the tool.

It works via a BYO-API key model. This means I can offer the extension as cheap as possible (free in this case) whilst utilising a completely free Gemini API LLM (15 requests per minute free).

Try it out, let me know what you think. I think its the only extension of its kind I could find. Still has some rough edges and bugs.

Papillon