Best AI Website Slider size 2026
Common website slider/banner sizes depend on the layout and screen coverage you want. Here are the most widely used sizes
| Purpose | Recommended Size | Aspect Ratio |
|---|---|---|
| Full-width website slider | **1920 × 600 px** | 16:5 |
| Modern hero banner | **1900 × 500 px** | 19:5 |
| Standard desktop slider | **1600 × 500 px** | 16:5 |
| Large hero section | **1920 × 800 px** | 12:5 |
| Square promotional banner | **1080 × 1080 px** | 1:1 |
| Tablet optimized | **1024 × 400 px** | 12:5 |
| Mobile slider | **768 × 900 px** | Vertical |
For your current website slider designs, **1900 × 500 px** is a very good modern choice because:
- Fast loading
- Looks clean on desktops
- Works well with AI marketing visuals
- Keeps text readable
- Fits most website builders
Recommended format:
- **PNG** → best quality
- **WebP** → best performance/speed
- **JPG** → smaller file size
Safe design area:
Keep important text/logo inside the center **1600 × 400 px** area so it stays visible on all screens.