Hook Strength Checker
Score any hook across 7 viral dimensions.
Paste any YouTube, TikTok or Shorts link and get benchmarks, retention curves, and rewrites — grounded in your actual footage.
Analyze a video freeToday I want to show you something interesting.
This one setting doubled my revenue overnight — nobody told me about it.
Why it works: Removes throat-clearing, adds outcome + specificity + curiosity gap.
Learn why this matters+
The difference between a video that dies at 200 views and one that hits 100K almost always lives in the first 3 seconds and the visual promise.
Getting this input right compounds — every video afterwards inherits the improvement.
- ×Writing for yourself instead of the scrolling viewer.
- ×Being clever when you should be clear.
- ×Burying the promise past the 3-second mark.
- ×Copying a format without understanding why it worked.
- ×Optimizing only one variable (title OR thumbnail OR hook) instead of the whole triangle.
- ✓Lead with a specific number, name or claim — vagueness kills retention.
- ✓Create a curiosity gap in the first 3 seconds and don't close it until the payoff.
- ✓Pair emotion with novelty — surprising + emotionally resonant beats either alone.
- ✓Match hook energy to platform: TikTok/Shorts = tighter, YouTube = deeper promise.
- →Read the output out loud. If you stumble, the viewer will too.
- →Save the best 3 outputs and rotate them across the next 3 posts to A/B in the wild.
- →Pair every improvement with a retention benchmark — improvement without measurement is a guess.
- →Run the same input through 2 different tools (title studio + hook rewriter) and compare — the overlaps are gold.
Paste any video link into the full analyzer and get scoring grounded in your actual footage — hooks, retention curves, and thumbnail CTR.
Open live analyzerHow this score is calculated+
- ·Scores blend viral-pattern models trained on 2.4M+ analyzed videos with live 2026 platform benchmarks.
- ·Every metric maps to a real signal: retention curve, click-through, curiosity tension, or pattern-interrupt strength.
- ·No output is generic filler — the model is prompted to justify every number with a concrete psychological driver.
- ·Nothing is stored. Your input is never used to train models or shown to anyone else.
Keyboard shortcuts+
Frequently asked questions
How does the Hook Strength Checker work?+
It scores your opening line across 7 viral dimensions — curiosity, clarity, emotion, pattern interrupt, urgency, novelty and an overall viral score — using the same psychological framework our full analyzer applies to top-performing videos.
Is it free?+
Yes. No sign-up, no paywall. Score as many hooks as you want.
How is the score calculated?+
Each dimension is graded 0-100 by an AI trained on viral hook patterns. The overall score is a weighted blend that mirrors real retention and click-through curves.
Will it rewrite my hook?+
Yes — you get 5 stronger alternatives with a note on why each version is sharper.