JPG to WebP converts your JPG photos into WebP, the image format modern websites use to load faster. Convert a batch of photos in your browser, choose the quality, and download them in a ZIP file.
Why use WebP on a website
| Benefit | What it means |
|---|---|
| Smaller files | Pages load faster, which helps visitors on mobile data and page-speed scores |
| Works everywhere | Supported by all current browsers |
| Transparency and animation | One format instead of PNG and GIF |
WebP is already selected on this page, and only JPG files can be added. Photo EXIF data, including GPS location, is not copied into the WebP files, which also saves a few kilobytes. Want them even smaller? Run them through Compress Image afterwards.
Quality settings
| Setting | WebP quality | Use it for |
|---|---|---|
| Maximum | 95 | Hero images and photos viewed full screen |
| High (default) | 90 | Product photos, blog images, galleries |
| Medium | 80 | Thumbnails, backgrounds, cards in a list |
Converting from JPG decodes the photo and encodes it again, so it is one more round of lossy compression. At High the difference is very hard to see; avoid converting the same picture back and forth between JPG and WebP.
A simple workflow for website images
- Resize each photo to the largest width it will be shown at, for example 1600 pixels for a full-width image or 800 for a blog column, with Resize Image.
- Convert the resized JPGs here at High quality.
- Upload the WebP files to your CMS, shop or static site, with a descriptive file name and alt text.
Page-speed tools often report “Serve images in next-gen formats”. Converting the largest images on the page, usually the hero image and product photos, is what makes the biggest difference.
When to keep JPG
- Email newsletters: some email programs still do not display WebP reliably.
- Files you send to people to download, print or edit, since older desktop apps may not open WebP.
- Marketplaces or forms that list only JPG and PNG as accepted formats.
The WebP files are encoded in your browser, so photos are not uploaded at any point.