Paste your opening line, first sentence, or hook and get an instant analysis — word count, curiosity signals, power words, questions, numbers, and an overall hook strength score. Built for blog intros, social posts, emails, and video scripts.
Analysis updates live. Only the first sentence is scored if you paste multiple lines.
Enter a hook above to see your score out of 100.
Frequently Asked Questions
What is a Hook Analyzer?
A Hook Analyzer evaluates your opening line or first sentence for elements that grab attention — curiosity, specificity, emotional language, questions, and numbers. It gives you a quick score and actionable suggestions before you publish.
How is the hook score calculated?
The score combines several signals: ideal word length (6–14 words scores highest), presence of power words, questions, numbers, second-person address (you/your), contrast words (but/however), and avoiding weak openers like "In this article" or "Hello everyone."
What counts as a power word?
Power words are emotionally charged or action-oriented terms — like secret, proven, instantly, mistake, free, discover, and why. They tend to increase curiosity and click-through rates in headlines and opening lines.
Should I only analyze one sentence?
Yes. Hooks work best as a single focused sentence. If you paste multiple lines, only the first sentence is analyzed. For full headline scoring, try the Headline Analyzer.
Is my text stored or sent anywhere?
No. All analysis runs entirely in your browser. Your text never leaves your device.
Is this tool free and does it work on mobile?
Yes on both counts. The Hook Analyzer on draft21 is completely free with no sign-up required and works on all devices.