How to Use the Google Ads Mockup Generator
- Input headlines, descriptions, and URLs with live character validation.
- Apply pinning only when required for legal, compliance, or brand constraints.
- Switch between desktop and mobile to check truncation behavior.
- Randomize combinations to surface awkward message pairings pre-launch.
- Export CSV for Google Ads Editor bulk upload workflows.
2026 Google Ads Character Limits & Specifications
| Asset | Limit | Max Count |
|---|---|---|
| Headlines | 30 chars | 15 |
| Descriptions | 90 chars | 4 |
| Path 1 / Path 2 | 15 chars each | 1 each |
| Sitelinks | 30 chars | 4 shown here |
| Callouts | 25 chars | 4 shown here |
Understanding Responsive Search Ad Combinations
With 15 headlines and 4 descriptions, desktop combinations can explode into tens of thousands of possible renderings. This is exactly why pre-launch simulation matters.
Best Practices for High-Converting RSAs
- Mix short, direct CTAs with longer benefit-driven variants.
- Avoid repeating near-identical headline patterns.
- Use pinning sparingly to preserve algorithmic flexibility.
- Map conversion-critical value props to descriptions for context density.
Why This Matters for QA
Google RSA previews are most useful when they support the real workflow: headline QA, character limit checks, desktop and mobile review, and quick client sign-off. Pair this tool with a clean destination URL and your campaign tracking setup so the ad, landing page, and reporting all tell the same story.
Frequently Asked Questions
How many headlines and descriptions can an RSA have?
Up to 15 headlines and 4 descriptions.
What is the headline character limit in Google Ads?
30 characters per headline.
How does pinning affect RSA performance?
Pinning reduces assembly flexibility. Use only where mandatory.
How can I improve Ad Strength?
Increase asset count, reduce duplicate phrasing, vary length patterns, and avoid excessive pins.