Platforms6 min read·Updated

Wix Image Optimisation: Convert to WebP Before Upload

Wix advertises automatic image optimisation. It helps, but a 7 MB iPhone photo still becomes a slow hero. Convert to WebP at the strip width of your Wix section and you typically cut LCP image weight by more than half.

Wix and WebP support

The Media Manager accepts WebP. Wix then serves responsive variants. Those variants cannot recover from an oversized, noisy original. Treat Wix like any other host: right-size, then encode.

Why it matters

  • Wix sites often use full-bleed strips; a 4000 px photo is common and unnecessary.
  • App market image 'optimisers' add scripts. A local convert adds none.
  • Multilingual Wix sites duplicate pages; image weight hits every locale.

How to do it

  1. Note the largest strip width (often 1920 px on desktop).
  2. Convert the folder at that width, quality 78–82 for photos.
  3. Replace files in Media Manager and re-attach if a widget cached the old URL.

Settings that work

Full-bleed hero: 1920 px, quality 75. Card images: 800 px, quality 80. Logos: 400 px, quality 92.

Convert a batch in your browser. Nothing is uploaded.

Put it into practice

Convert your images to WebP right now, free and privately in your browser.

Open the converter

Frequently asked questions

Yes. Use the Media Manager. If an old app rejects WebP, convert that one asset to JPEG at quality 85.

Indirectly. Smaller LCP images improve Core Web Vitals, which Google uses as a ranking signal.

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