Value Density for YouTube

About

Value Density helps you decide if a video is worth your time before you waste it.
Click one button on any video page and you get a clear read on the content. A worth-watching score out of 100, a short plain-language summary of what the video actually teaches, the key takeaways pulled out as a quick list, and a map of where the useful parts are so you can skip the filler. Click any timestamp to jump straight there.
The analysis is powered by Google Gemini, which watches the video and returns the result. You bring your own free Gemini API key from Google AI Studio, so the tool runs on your own quota. Nothing runs automatically. The analysis only happens when you click.
What you get:

A worth-watching score from 0 to 100
A short summary of what you would learn
Key takeaways as a quick scannable list
A skip-to map of the useful segments
Click a timestamp to jump to that moment
Add several Gemini keys and it switches automatically when one hits its free limit
Drag the panel anywhere on screen
Runs only when you click, never in the background

Your API keys are stored only on your own device. The only data sent out is the URL of the video you choose to analyze, which goes to your own Google Gemini account to produce the result.
This is an independent project and is not affiliated with, endorsed by, or sponsored by YouTube or Google.