How to convert JPG to WebP
- Drop one or more
.jpgor.jpegphotos onto the upload area. - Set the Quality. Around 75–85 is the usual sweet spot for web photos.
- Click Convert to WebP and download the smaller images.
All conversion happens inside your browser; your photos are never uploaded to a server.
Why WebP is better for websites
WebP was created by Google to make the web faster. Its lossy mode uses more advanced prediction and compression techniques than JPG, which was standardised in 1992. Google's own studies found lossy WebP files to be roughly 25–34% smaller than JPG images of comparable visual quality. On an image-heavy page, that can save megabytes per visit.
Smaller images mean faster page loads, better Core Web Vitals (particularly Largest Contentful Paint), lower bandwidth costs and a better experience on mobile connections. Tools such as Google PageSpeed Insights specifically recommend serving images in next-generation formats like WebP.
| JPG | WebP | |
|---|---|---|
| Introduced | 1992 | 2010 |
| Typical size for the same quality | Baseline | About 25–34% smaller |
| Transparency | No | Yes |
| Browser support | Universal | All modern browsers (Chrome, Edge, Firefox, Safari, Opera) |
| Desktop apps and older software | Universal | Not always supported |
When to use WebP and when to keep JPG
Use WebP for images that will be displayed on websites and web apps: blog photos, product images, hero banners and galleries. Safari has supported WebP since version 14 (2020), so all current browsers can display it.
Keep JPG for files you share outside the browser: email attachments, documents, print orders and uploads to services that only accept JPG or PNG. If you need a JPG again later, WebP to JPG converts it back.
Tips for the smallest files
- Resize first. Converting a 4000-pixel photo to WebP still leaves a heavy file. Scale it to the display size with Resize Image, which can also output WebP directly.
- Start from the original JPG. Every lossy conversion discards some detail, so avoid converting images that have already been heavily compressed.
- Compare quality settings. Try 70 and 85 on a typical image; on many photos the difference is invisible while the size drops noticeably.
- Keep the originals for editing and archiving.
Frequently asked questions
Do all browsers support WebP?
Yes, all modern browsers do, including Chrome, Edge, Firefox, Opera and Safari 14 or later. Only outdated browsers such as Internet Explorer lack support.
How much smaller will my images be?
Typically about a quarter to a third smaller than the JPG at similar visual quality. Results vary with the image content and the quality setting.
Will converting JPG to WebP lower the quality?
WebP's lossy mode discards some detail, like JPG. At quality 75–85 the result is usually indistinguishable from the original at normal viewing size.
Can I convert a whole batch?
Yes. Drop all your JPG files at once and they are converted with the same settings.