AI Facebook Ad Copy Generator
This free AI Facebook ad copy generator writes three ad variations for Facebook and Instagram, each with primary text, a headline and a short description. Describe the offer and audience, choose a goal and a tone, and get copy you can test. A length table shows which lines may be cut off in the feed.
AI Facebook Ad Copy Generator
AI Writing
About this tool
The generator asks Claude, an AI model, for three different angles on one offer, for example a problem-first version, a benefit-first version and an offer-first version. Each variation has primary text, a headline and a short description, written to start with the point because the feed cuts long text.
Describe your product, name the audience, pick a goal such as sales, leads or traffic, choose a tone and run it. The lines are listed in the copy box and in a table that compares them with the lengths that usually display in full. Use the three angles as separate ads in a test.
The offer box takes up to 800 characters. Meta shows only the first part of primary text before "see more", and limits vary by placement, so check the preview in Ads Manager. The copy is AI-generated and not policy-checked, so make sure claims are true and follow Meta's advertising standards, especially for health, finance and personal attributes.
Frequently asked questions
How long should Facebook ad text be?
About 125 characters of primary text show before "see more" on many placements, so put the hook first. Headlines display best at 40 characters or fewer and descriptions at 30. The table checks each line against those guides.
Can I run all three variations?
Yes, and it is a good idea. Use each as a separate ad in one ad set and let Meta show which performs best with your audience. Change one thing at a time, such as the headline, so you can learn from the result.
How much text can I use, and are there limits?
Each run accepts up to 800 characters for the offer description. There is also a fair-use limit on AI runs per visitor each day so the tool stays free. When you reach it, the free tools that do not use AI still work, and you can run this one again the next day.
How accurate is the AI output?
No AI output is guaranteed accurate. This tool can misread your meaning, repeat a common phrase or state a detail you did not give it, so read the ad copy through, check every name, number and claim, and edit it before you publish. Treat it as a fast first draft that you review, not finished copy.