Interactive generator
Generate
Output
How it works
Behind the generator
- 1
10 templates producing Google Ads headline + description pairs sized for Search (30-char headlines, 90-char descriptions) and adaptable for Performance Max / Display / YouTube.
- 2
Mustache-style interpolation against your inputs. Templates are fixed (not LLM-generated) so they ship instantly and let you A/B test which archetype wins for your keyword.
- 3
Output is starting copy. Polish the specifics, check character counts in Google Ads Editor, ship 4-6 variants per ad group for the optimizer to test.
- 4
Want brand-voice tuning and category-competitor-aware generation? That's the Shuttergen upgrade. The templated tier stays free.
Shuttergen
Templated copy ships in a second. Shuttergen ships the full RSA.
The generator above produces 10 headline + description pairs. Shuttergen takes the brief upstream and ships full Responsive Search Ad assets (15 headlines, 4 descriptions, image extensions) tuned to your category competitors.
Why Google Ads copy needs its own generator
Google Ads has structural constraints that other platforms don't: 30-character headline limit (15 per headline slot in Responsive Search Ads, up to 15 headlines per ad), 90-character description limit (up to 4 descriptions per ad), and mandatory keyword relevance between the search query and the ad copy for Quality Score optimization. Generic ad copy generators that don't account for these constraints produce output Google Ads Editor will reject or that performs poorly in the auction.
This generator builds the constraints into the templates. Each headline template stays under 30 characters when reasonable inputs are interpolated; each description stays under 90. The keyword input gets explicitly woven into the headline so the ad inherits Quality Score relevance against the search query.
The biggest Google Ads copy mistake: writing 15 headlines that all say the same thing in different words. Responsive Search Ads pin assets together based on combinations; if all your headlines are slight rewrites of each other, Google's optimizer has nothing meaningful to test. The 10 archetypes above are structurally distinct - keyword-matched, question-led, specificity, numeric, outcome-first, direct-action, comparison, authority, free-trial, time-anchored - so the optimizer can actually find performance differences.
Templated copy ships in a second. Shuttergen ships the full RSA. The generator above produces 10 headline + description pairs. Shuttergen takes the brief upstream and ships full Responsive Search Ad assets (15 headlines, 4 descriptions, image extensions) tuned to your category competitors.
Performance Max specific guidance
Performance Max is essentially a black-box auto-bidder. The only meaningful lever you have for influencing performance is the quality and breadth of the creative assets you feed it - headlines, descriptions, images, videos, and audience signals. PMax campaigns that ship 5 headlines all in the same archetype underperform PMax campaigns that ship 15 headlines across 5+ distinct archetypes by a wide margin.
The 10 templates above are structured specifically to give PMax broad creative input. Run all 10 against your inputs, pick 12-15 of the strongest, and load them into your PMax asset group. Add 4-5 distinct descriptions across archetypes. Provide 8-10 images and 2-3 short videos if you have them. The breadth is what unlocks PMax's optimization.
Audience signals: PMax also uses audience signals as a hint, not a hard constraint. Feed it your customer list, your converters list, and 2-3 in-market segments related to the keyword. The combination of broad creative + targeted audience signals is what makes PMax work; either alone underdelivers.
How to A/B test Google Ads copy correctly
Google Ads testing is structurally different from Meta or TikTok because Responsive Search Ads automatically test combinations. The discipline is different:
Test by archetype across multiple ad groups, not by phrasing within one ad. Run 1 RSA per ad group with all 10 archetypes loaded; create a second RSA per ad group with a subset that emphasizes 2-3 archetypes; compare ad-group-level performance. This reveals archetype performance without fighting RSA's combinatorial logic.
Let the experiment run for 2-3 weeks minimum. Google Ads optimization takes longer to stabilize than Meta because the auction dynamics are noisier and the conversion attribution windows can be longer. Day-3 reads are noise; week-3 reads are signal.
Use Google Ads Experiments for traffic-split testing. For real A/B testing rather than RSA-driven optimization, use the Experiments feature with a 50/50 traffic split. This is the only way to read true performance differences without RSA's pinning logic confounding results.
Track per-ad-group Quality Score. The biggest Google Ads performance lever is Quality Score, and the largest Quality Score driver is keyword-relevance in your copy. Run a monthly Quality Score audit; ad groups below 7 average QS need copy refresh focused on keyword alignment.
Internal: adwords-download-keywords for keyword sourcing; competitor-ppc-analysis for competitive copy intelligence.
FAQ
Frequently asked
Is this AI Google ad generator free?
Does the output fit Google Ads character limits?
Can I use these for Responsive Search Ads?
Does this work for Performance Max?
How is this different from Google's built-in AI suggestions?
Should I use both AI suggestions and this generator?
Related
Keep reading
Resource
Ad copy generator
The cross-platform copy generator.
Resource
Ai ad copy generator
The cross-platform AI copy variant.
Resource
Adwords download keywords
Sourcing keywords for the headline input.
Resource
Creative brief generator
Brief upstream input to the ad copy.
Research
The 3 Second Hook
Hook structural research that underpins these templates.
Templated copy ships in a second. Shuttergen ships the full RSA.
The generator above produces 10 headline + description pairs. Shuttergen takes the brief upstream and ships full Responsive Search Ad assets (15 headlines, 4 descriptions, image extensions) tuned to your category competitors.