Hook Doctor Lite: Free TikTok Hook Score in 3s
Hook Doctor Lite: a free 3-second hook check before you film
Most viewers decide in the first 3 seconds whether to keep watching. Paste the opening of your TikTok, Reels, or Shorts script and Hook Doctor Lite scores it out of 100, then writes 3 stronger hooks you can try. It's free, it runs on your own agent, and you don't need an API key.
TikTok · Instagram Reels · YouTube Shorts · English & 繁體中文（台灣）
Real demo
Below is the output from a real Hook Doctor Lite run on a generic meal-prep script for TikTok. It isn't a real creator.
"Hey guys, welcome back to my channel! So today I want to talk about meal prep."
Hook score: 35/100 (Likely scrolled past)
| Criterion | Score |
|---|---|
| Pattern interrupt | 5/20 |
| Clarity of promise | 8/20 |
| Curiosity gap | 4/15 |
| Audience relevance | 7/15 |
| Visual–verbal sync | 5/15 |
| Pace & delivery | 6/15 |
Verdict: A wave and "Hey guys, welcome back" open the video, and the strongest fact (about $60 a week saved) doesn't show up until the end.
3 rewritten hooks
| Style | Say | On-screen text |
|---|---|---|
| Result-first | "One hour of cooking on Sunday saves me about $60 a week on takeout." | 1 hour Sunday = $60/week saved |
| Mistake / warning | "If your meal prep falls apart by Wednesday, you're cooking too many recipes." | Too many recipes = failed prep |
| List / number | "Three things, one hour, a whole week of lunches. Here's the system." | 3 things. 1 hour. 1 week. |
Scores are an AI estimate against a fixed rubric and can vary a little between runs. They aren't a guarantee of views.
What you get
- Hook score /100 for the first 3 seconds, split over 6 criteria: pattern interrupt, clarity of promise, curiosity gap, audience relevance, visual–verbal sync, and pace & delivery
- A one-line verdict on what's holding the opening back
- 3 rewritten hooks, each in a different style (question, bold claim, result-first, list, mistake/warning, POV, challenge…), with a spoken line and on-screen text
It replies in English or Traditional Chinese (Taiwan), matching the language you write in.
How to use it
- Paste your script, transcript, or just the opening lines (the first ~30 seconds is enough).
- Add the platform (TikTok, Reels, or Shorts) if you like. It defaults to TikTok.
- Read the score, then pick a hook to try.
Lite works with text only. If you have a video link, paste the spoken words or captions instead.
Want the full fix? Hook Doctor Pro
Lite tells you how strong your hook is. Hook Doctor Pro shows you how to fix the whole video:
- a reason for every criterion score, plus a list of specific issues with timestamps
- 3 rewritten hooks, each with an opening visual as well as the line and on-screen text
- a revised, timestamped script
- a shot list / storyboard you can film from
- platform-specific retention tips
- video and screenshot uploads, not just text
Originality
Lite writes original hooks. It won't copy other creators' lines or suggest using a real person's face, voice, or name, and it won't add fake testimonials or guaranteed health or money results. The demo script on this page is a generic sample.
