Hook Detector for Chrome
See what beat its channel on every YouTube video, read any video on its own page, score your title in Studio as you type, and see your thumbnail among real videos.
Download for ChromeVersion 1.0.0 · Chrome, Edge, Brave and Arc
- On every video cardThe multiple over the channel's usual views and the views per hour, on home, search, channel pages, the watch page and Shorts. Free.
- On the watch pageThe video's multiple, views an hour and views, how it opens as said, its packaging read, its title and thumbnail changes, similar videos, and Save to Hook Detector. Free.
- In YouTube StudioYour title scored against the real outliers on its subject as you type: how much it looks like what already won there, part by part. 1 credit a new title.
- Your thumbnail on YouTubePick your thumbnail and title in the extension and see them among real videos on your home page, search and the watch page. Only you see it. Free.
Install
- Download and unzipDownload the extension below and unzip it. Keep the folder: Chrome loads it from there.
- Turn on Developer modeOpen
chrome://extensionsin Chrome and turn on Developer mode, top right. - Load itClick Load unpacked and pick the unzipped folder. Pin Hook Detector from the puzzle icon.
- Sign in with your keyMake a key on your account (the Research preset lets the title score spend credits), click the Hook Detector icon and paste it.
What the numbers are
The multiple is a video's views over its channel's usual views: the median of the channel's recent uploads of the same kind (long videos against long uploads, Shorts against Shorts). Views per hour is the gain between two reads about an hour apart, or the average since posting when there is only one. The title score counts how many of the subject's outliers your title matches, part by part. It is not a click-through rate or a prediction.
Your key stays in your browser and goes only to api.hookdetector.com. Your thumbnail preview never leaves your browser.