Google Ads Copy Generator (RSA)

How Responsive Search Ads actually use your assets

A Responsive Search Ad isn't one ad — it's a kit of parts. You supply up to 15 headlines (30-character cap each) and 4 descriptions (90 characters each), and Google assembles combinations per auction, learning which pairings convert. That changes how you should write: the 15 headlines aren't fifteen attempts at the same line, they're fifteen different angles — keyword match, benefit, price, trust signal, urgency, brand — that all have to make sense next to each other in any order.

The 30-character headline limit is brutal and non-negotiable, and it's where most hand-written RSAs die: “Professional Emergency Plumbing Services Denver” is 48 characters and will simply be rejected. “24/7 Denver Plumbers” (20) or “Upfront Plumbing Prices” (23) fit and say more. This generator writes to the caps and shows a live counter per asset so you can see exactly what survives.

Worked example — input “Emergency plumber in Denver, 24/7, licensed, upfront pricing”: strong asset sets mix headlines like “24/7 Emergency Plumber” (22), “Denver Plumbing Experts” (23), “Upfront Pricing, No Surprises” (29), “Licensed & Insured Team” (23), with descriptions like “Burst pipe at 2am? Our licensed Denver plumbers arrive fast with upfront pricing.” (83). Pin at most one headline (your brand or offer) and let the rest rotate — over-pinning is the most common way advertisers strangle their own ad strength score.