AI hook generator for X

Find a stronger first line for your X post.

Hook Lab takes one topic or draft and returns four different opening directions. Compare them, choose one, and continue writing in PostGrowly.

Open Hook Lab

Actual PostGrowly Hook Lab form with topic, optional current hook, niche, format, emotion, and number settings — Actual PostGrowly Hook Lab setup screen. Enter a topic and choose optional settings before generating four hooks.

How it works

Enter your idea

Describe the post topic. Optionally paste your current hook and choose a format, emotion, or number preference.

Compare four hooks

Hook Lab generates four different openings for the same idea and shows them as separate cards.

Choose and continue

Copy a hook, save it as an idea, send it to the composer, or continue in Copilot. Edit it so the post delivers what the opening promises.

Actual PostGrowly Hook Lab screen with four generated SaaS pricing hook cards and actions to regenerate or write a post — Actual Hook Lab results for a SaaS pricing topic. These four generated examples show different angles; your results will depend on your topic and preferences.

Illustrative example

One topic, several possible openings

Topic: Why repeating a YouTube video title in its thumbnail can cost clicks.

A possible opening: ‘Your thumbnail says the SAME THING as your title. What new reason did you give someone to click?’

The writer can compare that tension-led line with the other Hook Lab cards, then build a post that explains the title-and-thumbnail mismatch.

The sample opening illustrates the workflow; it is not a guaranteed AI output. Hook Lab currently uses 1 AI credit to generate four hooks, subject to plan limits.

Common questions

How many hooks do I get?

One generation returns four hook options for the topic you enter.

Can I use my own opening as a starting point?

Yes. Paste a current hook into the optional field to explore alternatives.

Does Hook Lab write the whole post?

Hook Lab focuses on openings. You choose one and continue the post in the composer or Copilot.

Try it in PostGrowly

Review the tool and plan limits before publishing or starting a campaign.

Open Hook Lab Compare plans