Content & marketing

Ad Copy Generator

Quick answer

Enter your product, audience and offer and the generator writes ad headlines and descriptions inside the platform's character limits, with counts shown live. Variants differ by angle — problem, outcome, proof and urgency — giving you a testable set rather than one line you have to guess about.

Headlines and descriptions in the shapes the ad networks accept, with the character limits enforced as you type.

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Headlines — 30 character limit

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    33 characters — too long, trim it

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    38 characters — too long, trim it

Descriptions — 90 character limit

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    123 characters — too long, trim it

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    104 characters — too long, trim it

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    104 characters — too long, trim it

Before you launch

  • Google caps headlines at 30 characters and descriptions at 90 — anything longer is silently dropped.
  • Put the benefit in headline one and the offer in headline two; the third is where the brand goes.
  • Match the landing page wording to the ad. A mismatch tanks quality score more than a weak headline does.
  • Write at least three headlines so the network has something to test; one variant is not a campaign.

Where ad budgets get wasted?

Most underperforming ads are not badly written; they are pointed at the wrong page. The click is a promise, and the landing page has ten seconds to repeat it in the same words before the visitor leaves.

Character limits are hard limits. A headline of thirty-four characters is not shortened gracefully — it is simply never shown, and you end up bidding on a variant you never read.

Test one variable at a time. Changing the headline, the offer and the landing page together tells you the campaign improved without telling you which change to keep.

What is the Ad Copy Generator?

What it answersHeadlines and descriptions within limits.
How the answer is producedAd copy is constrained writing: fixed character limits, one message, and a single measurable action.
What you need to enterDescribe the product, the buyer and the single action you want.
Where it stops being reliableIt has no performance data for your account, industry or audience.
Cost and sign-upFree, runs in your browser, no account and no stored inputs.

How are ad variants written?

Ad copy is constrained writing: fixed character limits, one message, and a single measurable action. The generator produces variants against the classic angles — problem-solution, outcome, social proof, objection handling and urgency — so you can test angles rather than synonyms.

Each variant leads with the benefit rather than the product category, keeps the headline inside the platform limit, and ends with an action verb. Where a claim would need substantiation, it uses a placeholder rather than inventing a statistic, because unverifiable claims are both an ad-policy risk and a trust problem.

Testing guidance is included: run angles against each other first, and only test wording once an angle is winning. Most accounts waste their test budget comparing near-identical sentences.

How do you use the Ad Copy Generator?

  1. 1.Describe the product, the buyer and the single action you want.
  2. 2.Pick three variants from three different angles for the first test.
  3. 3.Match the ad promise to the landing page headline exactly.
  4. 4.Run until you have enough conversions to judge, then test wording within the winning angle.

What can this tool not tell you?

  • It has no performance data for your account, industry or audience.
  • Ad platform policies restrict certain claims and categories; review before publishing.
  • Never publish a statistic or testimonial the tool suggested unless you can substantiate it.

What should you know about ad copy is a filter before it is a pitch?

The instinct in paid copy is to maximise clicks, which is precisely how budgets get burned. Every click is paid for, so copy that attracts the wrong reader is more expensive than copy that attracts fewer of the right ones. Good ad copy therefore does two jobs at once: it invites the qualified buyer and it quietly excludes everyone else, usually with a specific detail — a price band, an audience name, a use case — that the wrong reader will read as 'not for me'. Vagueness feels safer and costs more.

The second discipline is message match. The promise in the ad must be the first thing visible on the landing page, in similar words. When they drift apart, conversion rate drops even though the traffic quality is unchanged, because the visitor spends their first three seconds verifying they are in the right place instead of reading the offer. Writing the ad and the landing headline in the same sitting is the cheapest fix available and it is routinely skipped.

Finally, variants exist to be tested, not admired. Two ads that differ only in adjectives test nothing; two that differ in which benefit leads — speed versus cost versus risk reduction — produce a result you can act on. Structure your variants around one deliberate difference each, and let the platform's own testing do the arithmetic rather than guessing which phrasing sounds better.

Ad copy is judged against the landing page it leads to, not on its own. A headline that promises a free trial and lands on a pricing page with no trial button does not merely convert badly — on paid search it raises cost per click, because the platform scores the mismatch and charges for the poor experience. Writing the ad and the first screen of the page together, so that the exact promise in the ad appears in the first heading of the page, is the cheapest available improvement to both conversion rate and click price.

It also helps to write the disqualifier on purpose rather than treat it as a weakness of the ad. If a service only suits businesses over a certain size, or a course only makes sense for someone already past the beginner stage, saying so in the copy trades a few impressions for a cleaner set of clicks — and on any platform charging per click, a smaller pool of the right people almost always beats a larger pool where most visitors were never going to buy.

What do worked examples look like?

Adding a price to lower cost per lead

A bookkeeping service ran 'Affordable bookkeeping for small businesses'. Adding 'From £180/month' cut click volume by roughly a third and cut cost per qualified lead, because the visitors who would have bounced at the pricing page never clicked in the first place.

Message match in practice

Ad headline: 'Cancel your subscription in one click'. Landing page hero: 'Manage your account'. Rewriting the hero to 'Cancel your subscription in one click' — same words, same order — lifted conversion without touching the ad, the traffic or the offer.

Testing one variable at a time

Two ads run against each other: the first changes only the headline and holds the description, offer and target constant; the second changes headline, image, offer and audience simultaneously. Only the first produces knowledge. The second may win, but nothing about it can be carried into the next campaign, which is how advertisers end up with a folder of winning ads and no idea what makes an ad win.

What do people ask most about this tool?

How many ad variants should I test?

Three to five at a time. More splits traffic so thinly that nothing reaches significance.

What makes ad copy convert?

A specific benefit for a specific person, matched to what the landing page delivers. Mismatch between ad and page is the most common cause of wasted spend.

Should I mention price?

Include it when price is a competitive advantage or when it qualifies out the wrong clicks; omit it when the value needs explaining first.

How often should I refresh ad copy that is still performing?

Even winning ads fatigue as the same audience sees them repeatedly, usually visible as a slow decline in click-through with no change in targeting. Rotate in a new angle before that decline shows up in conversion rate, not after.

Which related tools should you try next?

Written and reviewed by Jim Vernon, Editor, AI Intelligence International. Published by AI Answer Engine, a service of AI Intelligence International, and checked against our editorial standards.