Wix websites are known for their beautiful templates — but large, unoptimised images are the most common reason Wix sites score poorly in Google PageSpeed and Core Web Vitals audits. Wix does compress uploaded images automatically, but starting with well-sized, pre-compressed images significantly improves results. At imgresizr.com, you can optimise images for Wix websites, for free.
Wix Image Size Guide
| Element | Recommended Size |
|---|---|
| Hero/banner image | 1920×1080px |
| About/team photo | 800×800px |
| Blog post image | 1200×800px |
| Product image (Wix Stores) | 1000×1000px square |
| Gallery image | 1200×900px |
How to Optimise Images for Wix at imgresizr.com
Upload your image to imgresizr.com. For hero and banner images, resize to 1920×1080px — Wix scales these down for different device widths but starts from the uploaded source. For blog images, resize to 1200×800px. For Wix Stores products, use 1000×1000px square format — Wix requires consistent square formats for clean product grid displays. Convert to WebP where possible — Wix began supporting WebP uploads natively. Use the Compress tool to target under 500KB for hero images and under 300KB for content images. This pre-compression step reduces Wix's server-side processing and ensures faster initial delivery from Wix's CDN.
Wix Image Optimisation Tips
- Wix applies its own CDN and optimisation automatically — your job is to start with a well-sized source image
- Enable Wix's built-in lazy loading (available in Wix Editor settings) for images below the fold
- Use Wix's image focal point feature to ensure the most important part of your image stays in frame on mobile
- For galleries, keep all images at consistent dimensions for a uniform grid layout
- Check your Wix site's PageSpeed score at pagespeed.web.dev after each batch of image optimisations
Optimise images for Wix websites before uploading, free at imgresizr.com.