Describe your product, audience, main benefit, pain point and offer, then choose a platform. You get headlines and descriptions written with the AIDA, PAS and FAB copywriting formulas, each with a live character count against the platform's limits, plus a ready responsive search ad set and a preview.
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Product and audience
A short noun: "meal kit", "yoga studio", "CRM software".
"wasting hours on invoices", "paying too much for ink".
"20% off your first order", "free shipping", "no setup fee".
Used in a few headlines for search ads.
Platform
Ad platform and character limits
Enter your values to see the result.
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How to use the Ad Copy Generator
Enter your product name and what it is, plus your target audience.
Add the main benefit, the pain point and the end result your customers want.
List key features, an offer and a call to action, and optionally a target keyword.
Pick the ad platform so character limits match where the ad will run.
Click any headline or description to copy it, or copy the responsive search ad set, and edit to taste.
Ad text limits by platform
Platform
Headline
Body / description
Type of limit
Google Ads responsive search ad
30 characters (up to 15 headlines)
90 characters (up to 4 descriptions)
Hard limit
Microsoft Advertising responsive search ad
30 characters (up to 15)
90 characters (up to 4)
Hard limit
Facebook & Instagram feed
About 40 characters
About 125 characters primary text
Recommended before truncation
LinkedIn single image ad
About 70 characters (200 max)
About 150 characters intro text (600 max)
Recommended before truncation
Platforms update their specifications from time to time, so check the current ad specs in your ad account before launching a campaign.
The three copywriting formulas
Formula
Steps
Example headline
Use it when
AIDA
Attention → Interest → Desire → Action
Track Every Expense Automatically
You have a clear, attractive benefit
PAS
Problem → Agitate → Solution
Still Losing Receipts?
Your audience feels a specific frustration
FAB
Features → Advantages → Benefits
Bank Sync + Receipt Scanning
Buyers compare features before choosing
Tips for ad copy that gets clicks
Match the search. Use the keyword in at least two or three search ad headlines.
Lead with the benefit and use features as proof.
Include a specific offer or number, such as a free trial length or a discount, when you have one.
Use one clear call to action that says exactly what happens next.
Make every claim accurate. Ad platforms and consumer protection rules require that prices, offers and claims are truthful.
Test variations. Run two or three versions and keep the one with the better click-through and conversion rate.
Frequently asked questions
What are the character limits for Google Ads?
Responsive search ads in Google Ads allow headlines of up to 30 characters and descriptions of up to 90 characters. You can add up to 15 headlines and 4 descriptions, and Google combines them automatically. Microsoft Advertising uses the same limits for responsive search ads.
What are the recommended lengths for Facebook and LinkedIn ads?
For Facebook and Instagram feed ads, Meta recommends primary text of about 125 characters and a headline of about 40 characters (shorter for some placements); longer text is cut off with "See more". LinkedIn recommends introductory text up to about 150 characters and headlines up to about 70 characters to avoid truncation.
What is the AIDA formula in advertising?
AIDA stands for Attention, Interest, Desire and Action. An AIDA ad grabs attention with a bold benefit or question, builds interest by speaking to the audience, creates desire with features or an offer, and ends with a clear call to action.
What is the PAS copywriting formula?
PAS stands for Problem, Agitate, Solution. The ad names a problem the reader has, makes the cost of that problem feel real, and presents your product as the fix. It works well for products that remove an obvious frustration.
What does FAB mean in copywriting?
FAB stands for Features, Advantages and Benefits. A feature is what the product has (bank sync), the advantage is what that lets you do (track expenses automatically) and the benefit is the outcome the customer cares about (a stress-free tax season). Good ads lead with the benefit and use features as proof.
How many headlines should I write for a responsive search ad?
Google recommends filling as many of the 15 headline slots as you can with distinct, relevant headlines, including your keyword in some of them, and providing all 4 descriptions. More variety gives the system more combinations to test.
Are my product details sent anywhere?
No. All ad copy is generated in your browser from your inputs using copywriting templates. Nothing is uploaded, and your last inputs are kept only in this browser.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.