Corto
Free tool — no signup

Free AI Hook Generator

Paste a product URL. Get 7 scroll-stopping UGC hooks for TikTok, Reels, and Shorts — free, in seconds. 5 analyses per day.

This free tool reads a product URL and writes 7 hook lines you can use to open a video ad. Corto, the full product, turns a product URL into 3 ads. Each ad is a 9:16 MP4, 10 or 15 seconds long, in a talking head, product B-roll, or caption format. The first week costs $19, then Standard is $39 a month and Pro is $79 a month. You download the MP4s and post them yourself.

How it works

  1. Paste your product or store URL
  2. Corto reads the page — name, offer, positioning
  3. AI writes 7 hooks using proven viral formulas (curiosity, social proof, urgency, transformation and more)
  4. Copy the hooks into your ads — or render them as videos with Corto