JPG, PNG and GIF to WebP
Convert one or several images directly in the browser.
Image to WebP Converter
Convert JPG and PNG to WebP in your browser and see the savings.
- Free
- No sign-up
- Runs in your browser
- Performance
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Why use it
Large images are the most common reason for a slow Largest Contentful Paint. Convert hero images, logos and banners to WebP here, adjust quality and maximum width, and compare file sizes before you upload them to WordPress or Shopify. Conversion happens on your device.
Quality and resize
Choose the quality and an optional maximum width, then compare file sizes.
No uploads
Images are converted on your device and never leave it.
How to use it
4 quick steps. Going deeper? Read Core Web Vitals for WordPress: fixing LCP, INP and CLS without guesswork.
- 01
Drop images onto the converter or choose files (JPG, PNG or GIF).
- 02
Set the quality (75–85 is a good balance) and an optional maximum width.
- 03
Compare original and WebP sizes in the results list.
- 04
Download each WebP file, or all of them one by one.
Who it’s for
Typical situations where this tool saves time.
- WordPress and Shopify editorsShrink hero images before uploading them.
- DevelopersPrepare lightweight assets for a theme or a Next.js app.
- Performance workCut LCP by serving smaller hero images.
Questions
Short answers about privacy, limits and how the tool works.
Are my images uploaded?
No. The browser decodes each image and re-encodes it as WebP locally using the Canvas API.
Does WebP work everywhere?
Every current browser supports WebP, and WordPress and Shopify both accept WebP uploads.
Why is the WebP sometimes larger?
Already-optimized or very small PNGs can grow slightly. The tool shows both sizes so you can keep whichever is smaller.
Need a tool like this inside your product?
I build custom calculators, admin utilities and integrations for WordPress, Laravel and Next.js teams.