All free tools
Hook Lab
Bulk Hook Analyzer
Score up to 10 hooks at once.
~2 min Free · no sign-in ⌘/Ctrl + Enter to run
Go deeper
Run a real video through the full ViralHookAnalyzer.
Paste any YouTube, TikTok or Shorts link and get benchmarks, retention curves, and rewrites — grounded in your actual footage.
Analyze a video freeBefore vs after
Before
In this video I'll show you how to grow.
After
I grew from 0 to 100K in 37 days — here's the exact system.
Why it works: Specific outcome + timeline + implied playbook triggers curiosity + authority.
Real examples by niche
Learn why this matters+
One hook can 3× your reach; the wrong one buries a great video forever.
Batch-testing 10 hooks before shooting saves weeks of trial-and-error posting.
Common mistakes
- ×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.
Best practices
- ✓Iterate — don't ship the first output.
- ✓Combine numeric specificity with a curiosity gap.
- ✓Match the title, thumbnail, and hook promise.
Professional tips
- →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.
Try this on a real YouTube or TikTok URL
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.
Estimated time to complete: ~2 min
Keyboard shortcuts+
Run the tool⌘/Ctrl + Enter
Focus the input⌘/Ctrl + K
Copy output when focused⌘/Ctrl + C
Show shortcuts?
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