In simple English
This tool shows you how well a YouTube video is doing compared to other videos on the same channel. It calculates a score by dividing the view count of a video by the middle view count of recent uploads from that channel. It adds a small badge to each thumbnail on your screen as you scroll. It needs no account, no paid key, and no external server to run. It works entirely inside your web browser for free.
What it is
A Firefox extension (a small program that adds features to your web browser) that calculates and displays view score badges on YouTube thumbnails. It fetches data through YouTube's internal web requests and saves results in your browser storage.
What it is good for
Content creators and researchers who want to spot viral videos on YouTube without manually checking channel statistics.
- Runs entirely in your web browser with no server required.
- Separates regular videos from Shorts for accurate comparisons.
- Saves data locally so it does not slow down your browsing.
- Only works on the Firefox web browser.
- Relies on unofficial YouTube endpoints that can break when the site updates.
- New videos under seven days old show lower scores because they have not gathered views yet.
Manual channel audits
Firefox
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Get it directly from the Firefox Add-ons website or load the folder as a temporary add-on through the about:debugging page in Firefox.