Website banners — hero images, announcement bars, promotional banners, and section headers — are among the most impactful visual elements on any website. They set the tone, communicate your value proposition, and guide visitors deeper into your site. At imgresizr.com, you can create and resize website banners at any dimension, for free.
Common Website Banner Sizes
| Banner Type | Dimensions | Notes |
|---|---|---|
| Full-width hero | 1920×600–1080px | Homepage hero section |
| Half-width hero | 960×600px | Split layout sections |
| Announcement bar | 1920×60–80px | Very thin top bar |
| Blog sidebar banner | 300×250px | Standard sidebar ad size |
| Category header | 1200×300px | Section/category pages |
How to Create Website Banners at imgresizr.com
Upload your source image to imgresizr.com. For a full-width hero banner, use the Resize tool to set the width to 1920px. Set the height based on your site's layout — 600px for a moderate hero, up to 1080px for a full-screen immersive hero. Use the Crop tool to compose the image so the most important elements are in the centre, as banners are often cropped differently on mobile. Use the Caption tool to overlay your headline and call to action if these are baked into the image. Compress the banner to under 300KB for fast page loading — hero images are often the largest file on a page and significantly impact Core Web Vitals scores.
Website Banner Tips
- Compress all website banners aggressively — page speed is a direct Google ranking factor
- Design for mobile first — banners often crop differently on small screens
- Leave space for text overlays if your CMS adds headlines on top of banner images
- High-contrast images with clear subject matter work better than busy, complex scenes
Create and resize website banners at any size, free at imgresizr.com.