Google Ad Copy Generator: RSA Headlines and Descriptions
A responsive search ad wants up to 15 headlines and 4 descriptions, each cut to a strict character count. Adscreator is a Google ad copy generator that drafts them inside the limits, plus the display creative to match.
Flat pricing, no credits · Updated July 2026
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Direct answer
A Google ad copy generator is a tool that writes the text of a Google ad, the headlines and descriptions a responsive search ad needs, inside Google character limits. Adscreator drafts headlines that fit the 30-character cap and descriptions that fit the 90-character cap, gives you enough of each to fill an RSA, and hands you variants to test different angles. For the Display Network it also generates the on-brand banner creative in every standard size. You paste the copy into Google Ads and export the banners yourself, nothing connects to your account.
The problem
Responsive search ads are a character-counting exercise: up to 15 headlines at 30 characters each and 4 descriptions at 90, all distinct, all on message. Writing that many tight, non-repetitive lines by hand is tedious, and it is easy to blow the limit and get an asset rejected. On the Display side you then need banner creative in half a dozen sizes, which is a separate job entirely.
How Adscreator handles it
Adscreator handles both halves of a Google campaign. For search, describe your product or paste its URL and it writes a full set of RSA headlines that fit the 30-character limit and descriptions that fit the 90-character limit, varied enough that Google has real material to test and rotate. For the Display Network it generates on-brand banner images in the standard sizes (300 x 250, 728 x 90, 320 x 50, 160 x 600, and 300 x 600) in the same pass. Everything runs on flat monthly pricing with no credits, and you paste the copy into Google Ads and export the banners yourself. Adscreator never touches your ad account.
specs
Responsive search ad limits, straight from Google Ads.
A responsive search ad is defined by a short list of hard rules, and most of the trouble people have with RSAs comes from two of them: the gap between the minimum and the maximum, and what pinning does to your Ad Strength. These figures are verified against Google Ads Help in 2026. Adscreator writes inside every one of them.
| Asset or rule | Specification | Minimum | Maximum |
|---|---|---|---|
| Headline | 30 characters each | 3 | 15 |
| Description | 90 characters each | 2 | 4 |
| Display URL path | 15 characters each | 0 | 2 |
| Final URL | One landing page per ad | 1 | 1 |
| Responsive search ads per ad group | Google recommends at least 2 at Good or Excellent Ad Strength | 1 | 3 |
| Pinning | Only Headline 1, Headline 2, and Description 1 guarantee an asset appears | Not required | Reduces Ad Strength |
| Double-width languages | Japanese, Korean, and Chinese count each character as two | Not applicable | Not applicable |
Headline 1 and Description 1 almost always show; Headline 2, Headline 3, and Description 2 appear based on predicted performance, so never write a headline that only makes sense as the second half of a sentence. Pinning to Headline 3 or Description 2 does not guarantee the asset runs, which surprises a lot of advertisers who pin a legal disclaimer there and assume it is covered.
Ad Strength measures variety, and pinning is usually what kills it
Google grades every responsive search ad from Poor to Excellent, and the score is mostly a completeness and variety check: did you supply enough headlines, are they distinct from each other, do the descriptions add information rather than repeat, and are your keywords represented. It is not a quality judgment on your writing and it is not a ranking factor you can bank on, but a Poor rating is a genuine signal that the system has too few combinations to test with. The single most common cause of a low score is pinning. Advertisers pin a brand name to Headline 1 and a compliance line to Description 1 for perfectly good reasons, and in doing so they collapse the number of combinations Google can build, which drops Ad Strength and narrows the ad. If you must pin, pin one slot rather than three, and consider pinning two or three different assets to the same position so the system still has a choice. The wider fix is supplying enough unpinned material elsewhere that the constrained slot is not the whole ad.
Fifteen distinct headlines is a writing problem, not a counting problem
The character counter is the easy part. The hard part is that Google wants 15 headlines of 30 characters each that make genuinely different points about the same product, and human writers run out of angles at about six. What follows is predictable: headlines seven through fifteen become synonyms, "Fast Delivery" next to "Quick Shipping" next to "Ships Fast", and the ad group ends up with a high asset count and almost no real variety. Google notices, and so does performance. The angles that actually differ come from the same places every time: the specific outcome, the price or offer, the speed, the risk removal such as a guarantee or free returns, the proof point, the audience callout, the objection handled head on, and the seasonal or urgency hook. Writing eight of those from scratch for every ad group, inside 30 characters, for every product line, is where teams give up and paste the same headline set everywhere. Generating the set from your landing page URL is a straightforward way out, because the source material for those angles is already on the page, and Adscreator drafts them at the count Google asks for rather than the count a tired copywriter can face.
what it uses
The features behind google ad copy generator.
questions
Google ad copy generator: the questions people ask.
What are the character limits for Google Ads?
A responsive search ad headline is capped at 30 characters, and each description at 90 characters. You can supply up to 15 headlines and 4 descriptions, and Google mixes them into combinations. Display path fields are 15 characters each. Adscreator writes copy that fits these caps so assets are not rejected, and gives you a full set to fill the ad.
How many headlines do you need for a responsive search ad?
Google lets you add up to 15 headlines and recommends supplying as many strong, distinct ones as you can, since more material gives the system more combinations to test. Aim for at least 8 to 10 genuinely different angles rather than 15 near-duplicates. Adscreator drafts a varied set inside the 30-character limit so you are not writing them one at a time.
Is there an AI tool for Google Ads copy?
Yes. Adscreator writes responsive search ad headlines and descriptions inside Google character limits from a product description or URL, and generates on-brand display banners in every standard size for the Display Network. You get variants to test, then paste the copy into Google Ads and export the banner files yourself. It writes copy and static creative, not video.
How much does a Google ad copy generator cost?
Adscreator is flat monthly: $39 on Starter, or $29 a month billed yearly, with no credits, so you can generate full RSA sets and display banners as often as you test. There is no free plan. Your Google Ads media spend is separate, since Google bills you directly for the clicks your ads earn.
▪ keep reading
Google's character limits and the headline discipline they force are covered in Google ads copy best practices and Google RSA best practices.
For the full campaign rather than just the text, see the Google Ads generator, and for testing copy sets against each other, the ad creative testing tool.
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