Google Display Network ads appear across millions of websites, apps, and Gmail inboxes. Effective display ad banners require the right dimensions, compelling visuals, and clear messaging. At imgresizr.com, you can create and resize Google Display Ad images to all standard IAB sizes for free, entirely in your browser.
Google Display Ad Standard Sizes
| Ad Name | Size | Notes |
|---|---|---|
| Medium Rectangle | 300×250px | Most widely used ad size |
| Leaderboard | 728×90px | Top of page banners |
| Wide Skyscraper | 160×600px | Sidebar ads |
| Large Rectangle | 336×280px | In-content placements |
| Half Page | 300×600px | High-impact sidebar |
| Billboard | 970×250px | Large desktop banner |
How to Create Display Ad Banners at imgresizr.com
Upload your source brand image or campaign creative to imgresizr.com. Use the Resize tool to set the exact dimensions for each ad size. For the most important formats — 300×250px, 728×90px, and 160×600px — create separate optimised versions. The 300×250px medium rectangle is the single most-served ad size on the internet, so prioritise this first. Use the Crop tool to recompose your image for each aspect ratio — a widescreen banner (728×90px) needs a very different crop to a vertical skyscraper (160×600px). Apply the Enhance tool to ensure colours are vivid and stand out on publisher pages. Compress each banner to under 150KB as Google has strict file size limits for display ads.
Display Ad Design Tips
- Include your logo, offer, and CTA button — these three elements are the minimum for effective display ads
- High contrast between the ad and a typical white website background helps it stand out
- Keep the message simple — you have less than 2 seconds to communicate your offer
- Bright, warm colours (red, orange, yellow) tend to attract more attention than cool colours
Create and resize Google Display Ad banners for all standard sizes free at imgresizr.com.