The framework
Good ad copy is three parts, and each has one job:
- Headline: the outcome or the objection, in ≤6 words.
- Primary text: one specific benefit + one proof point + one line on who it's for.
- CTA: matched to intent ("Shop now" warm, "Learn more" cold).
Before / after
Before: "Premium ergonomic office chair. High quality materials. Shop now."
After (headline): "Stop the 3pm back ache."
Get 10 scroll-stopping ad headlines instantly — no signup.
Use the tool free →After (primary text): "An ergonomic chair that actually supports your lower back through an 8-hour day — mesh that breathes, tilt that locks. Built for people who work from a desk all day, not for gamers."
The "after" wins because it names an outcome, gives a concrete detail, and says who it's for (and implicitly, who it isn't).
The rules underneath
- Specific beats clever. A real number or detail out-converts a pun.
- Name who it's wrong for. It makes every other claim more believable.
- One idea per ad. Test the second idea as a separate creative. How many to test →
- Match the platform. Casual on TikTok, punchy on feed, benefit-forward on Google.
Generate copy + creative together
Writing this per product, per angle, per platform is where hours go. AdCreator AI writes the headline, primary text and CTA and makes the matching creative from your Shopify product — as many angles as you want to test on paid plans. 6 free a month, no card. Free on the App Store →; not on Shopify, use the web app. See also: AI vs a designer →.
Before launching, run your draft through the free ad copy grader — it scores the copy and says what to fix, no signup.
FAQ
How long should Facebook ad copy be? As long as it needs to make one benefit clear — often 2–4 short lines. Test long vs short as separate creatives.
What makes ad copy convert? A specific outcome, a proof point, and a clear who-it's-for — not adjectives like "premium".
Can AI write ad copy that sells? For volume and testing, yes — generate several angles, run them, keep the winner.