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.
How to write a scroll-stopping hook
A scroll-stopping hook does five things in the first two seconds: it opens a curiosity gap, is instantly clear, gets specific fast, speaks to one viewer, and promises a payoff worth staying for. The fastest way to learn it is to write your opener, score it above, and study the rewrites — then reuse the patterns that scored highest. Want more? Our blog breaks down hook formulas and examples, and VibeDay turns a winning hook into a finished, captioned video ready to publish.
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.
What is a good hook rate?
Hook rate is the share of viewers still watching after the first few seconds. It varies by platform and audience, but a strong short-form hook typically holds well above half of viewers past the opening. Rather than chase a universal number, use the Scroll-Stopper Score to improve the opening line itself — a stronger hook is what raises hook rate.
Why do my Reels get no views in the first 3 seconds?
Almost always the opening. If the first line doesn't create curiosity or promise a clear payoff, viewers scroll before the algorithm ever pushes the video wider — so reach stalls no matter how good the rest is. Paste your opening line above to see exactly what's weak and get stronger rewrites.