YouTube Hook Analyzer
Paste your first 15 to 30 seconds. Get a score, a line-by-line read of what is working, and 3 rewrites you can paste in.
What you get
Hook score
A score out of 100 plus a letter grade so you know if your hook is in the green or needs work before you record.
Per-sentence breakdown
Every sentence rated for attention pull and curiosity gap, so you can spot the exact line most worth reviewing.
3 rewrites
A tighter version, a contrarian flip, and a curiosity-gap version. Paste any of them in directly and keep moving.
Common questions
The basics most creators ask before pasting their hook.
What does it actually do?
You paste the first 15 to 30 seconds of your script. You get a score out of 100, a per-sentence breakdown, three specific things that could be tighter, and three rewritten versions you can paste in directly.
Is it free?
Yes. The first one is free, no signup. Drop your email and you get a few more per day. No credit card.
How long should the hook be?
Around 50 to 200 words. That is roughly the first 15 to 30 seconds when you read at normal speaking pace. Longer than that and the analysis gets fuzzy.
Do I need to share my whole script?
No. Just the opening. This tool is intentionally limited to opening clarity, promise, pacing, and structure; it does not measure published retention.
How long does it take?
Processing time varies with service load. The page shows a clear result or error state when the check finishes.
How accurate is it?
Treat it as a structured second opinion before you record, not a measurement or guarantee of viewer behavior. Validate useful flags against your own published YouTube Studio data.
What do you do with my email?
We use it to count your daily limit and add you to our newsletter. That is it. One click to unsubscribe whenever.
How is this different from PrePublish itself?
This tool only looks at your hook. PrePublish analyzes your whole script, flags the lines most likely to lose attention, and suggests fixes for the entire video, not just the opening.
Want this for your whole script?
The Hook Analyzer covers your first 30 seconds. PrePublish runs on your full draft, maps relative script-level attention risk, and rewrites the sections it flags for review.