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RSA Ad Copy Generator & Grader

Writing 15 headlines and 4 descriptions that fit, vary and convert is a grind. Enter a few details and get a full responsive search ad, character-perfect and graded, ready to paste into Google Ads.

By the Digital Success paid-media team · Updated September 2026 · Free, results in seconds

The short version: a strong responsive search ad needs up to 15 distinct headlines (30 characters each) and 4 descriptions (90 characters each), with your keyword woven in, real variety, and no policy red flags. This tool generates them from your inputs, checks every character limit, and grades the set for strength so you launch with Good or Excellent ad strength, not a thin, repetitive ad.
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Generate a responsive search ad

Enter the essentials and we build a full, character-perfect RSA and grade it. Generated in your browser.

What you get

A complete, launch-ready responsive search ad in seconds. Enter your product, benefit, offer, keyword and call to action, and the tool builds up to 15 headlines and 4 descriptions, every one checked against Google's character limits, deduplicated for variety, and woven with your keyword. Then it grades the set for ad strength and flags anything that could trip Google's policies, so you paste in a Good-or-Excellent ad rather than a thin, repetitive one that quietly caps your reach.

How it works

  1. Enter your product or service, key benefit, offer, keyword and call to action.
  2. Generate a full set of headlines and descriptions within the limits.
  3. Review the ad-strength grade, keyword coverage and policy checks.
  4. Copy the assets straight into Google Ads and edit to taste.

Why variety and limits decide RSA performance

A responsive search ad is not one ad, it is a kit of parts Google recombines for each searcher, so the more distinct, relevant, character-perfect assets you give it, the more winning combinations it can find. That is why ad strength rewards a full 15 headlines with real variety and penalizes a handful of near-duplicates, and why a single headline that runs one character over gets rejected on entry. This tool handles both the tedious mechanics, counting characters, removing duplicates, weaving the keyword, and the judgement, flagging over-capitalization and unproven superlatives that invite disapproval, so you start from a strong, compliant base. Treat what it gives you as a springboard: edit it into your real brand voice, pin only what must always show, and keep testing, because the copy that wins is the copy you keep improving.

Frequently asked questions

What is a responsive search ad?
Google's standard Search format: up to 15 headlines (30 chars) and 4 descriptions (90 chars) that Google mixes to find the best combinations. Variety and relevance drive its strength and performance.
How many assets do I need?
Aim for the full 15 headlines and 4 descriptions. More distinct assets give Google more to test and lift ad strength. This tool generates a full set and flags if you are short.
Does ad strength matter?
It is not a direct ranking factor, but Good or Excellent ads generally earn more impressions and better results, so it is worth reaching.
Should I pin headlines?
Sparingly, only for something that must always show, like a disclaimer. Over-pinning strangles the variety that makes RSAs work.
How do I avoid policy problems?
Avoid all-caps, repeated punctuation, and unproven superlatives. This tool flags common policy risks to reduce disapprovals.
Is it free?
Yes, free with no login, generated in your browser. Share your details once to open and copy the full set.

Further reading from Digital Success

Want ad copy that actually converts?

A generator gets you compliant copy fast; a specialist writes copy that wins the click and the customer, and tests it relentlessly. Digital Success does both. Talk to a specialist for a free review.

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