Will your video stop the scroll?
Paste your opening line and get a free 0–100 hook score for Reels, TikToks & Shorts — plus stronger rewrites in seconds.
Free · no signup · instant
Your hook score + stronger rewrites will appear here.
Why the first 3 seconds decide everything
On Reels, TikTok, and Shorts, most viewers decide whether to keep watching in under two seconds. A weak hook means your reach dies before your content even gets a chance — no matter how good the rest of the video is. The Scroll-Stopper Score grades the one thing that moves retention the most, and shows you exactly how to fix it.
Frequently asked questions
What is a video hook?
Your hook is the first line or first ~3 seconds of a short-form video — the words on screen or spoken right away. It's what decides whether someone keeps watching or scrolls past, so it's the single highest-leverage part of any Reel, TikTok, or Short.
How does the Scroll-Stopper Score work?
Paste your hook and our AI scores it 0–100 across six dimensions — curiosity, clarity, specificity, relevance, payoff, and pace — names the hook type, points out what's holding it back, and gives you stronger rewrites using proven frameworks.
Is it free?
Yes. Scoring is free with no signup. It's built by VibeDay, the AI tool that turns a great hook into a finished, captioned video ready to publish.
What makes a hook stop the scroll?
The best hooks open a curiosity loop, are instantly clear, get specific fast, target a viewer, and promise a payoff — all within the first two seconds. The tool grades exactly these and shows you how to improve.