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Ad Copy Generator

Generate high-converting ad copy variations for Google, Facebook and LinkedIn with AI — headlines, descriptions and CTAs ready to test, within character limits.

Google Ads Facebook Ads LinkedIn Ads Multiple variations Benefit-focused Character-limit safe
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Ad format character limits

Platform Headline Description / Body Note
Google RSA 30 chars × 15 90 chars × 4 Algorithm mixes combinations — write independent headlines
Google Display 30 chars × 5 90 chars × 5 Also needs a short headline (25 chars) for small placements
Facebook / Meta 40 chars 125 chars primary Primary text truncates at 125 chars on most placements
LinkedIn (Single) 70 chars 100 chars Professional tone; B2B targeting; higher CPC but quality intent
LinkedIn (Message) 60 chars subject 1,500 chars body InMail — conversational, not formal ad copy

Frequently asked questions

What makes ad copy high-converting?

Four characteristics: (1) Specificity — "47% faster checkout" beats "faster checkout"; (2) Benefit over feature — "Stop losing sales to slow sites" beats "Page speed optimisation"; (3) Audience language — speak the exact words your target customer uses to describe their problem; (4) CTA clarity — "Start free trial" beats "Learn more". For Google RSAs: front-load the keyword in Headline 1, differentiator in Headline 2, CTA in Headline 3.

How many ad copy variations should I test?

Test 3–5 headline variants and 2–3 description variants simultaneously using RSAs (Google) or ad set testing (Meta). Google recommends at least 3 headlines and 2 descriptions per RSA. For manual A/B testing: test one variable at a time (headline only, keeping description constant). Give each variant at least 100 clicks before conclusions — less produces meaningless data.

What is the character limit for Google Ads headlines?

Google RSAs: headlines up to 30 characters each (15 headlines max), descriptions up to 90 chars (4 max). Facebook: primary text 125 chars, headline 40 chars, description 30 chars. LinkedIn: headline 70 chars, description 100 chars. The ad copy generator outputs within limits automatically.

Should ad copy match the landing page?

Yes — message match between ad and landing page is one of the strongest predictors of conversion rate. If the ad promises "50% off all plans", the landing page H1 must reflect it. Mismatched messaging increases bounce rate and damages Google Quality Score (raising your CPC). Rule: whatever promise is in the ad must be echoed in the H1 and first paragraph of the landing page.

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