Free JPG to WebP Converter
This free tool converts JPG photos to WebP in your browser, typically saving 25 to 35 percent of the file size at the same visual quality, with the pixel dimensions unchanged.
Drop images here
JPG files — add as many as you like
Runs entirely in your browser. Your images are never uploaded to a server.
How it works
- Drop one or more JPGs onto the box above, or click to choose them from your device.
- The WebP versions are created immediately, and the panel shows the original size, the new size, and the percentage difference for each file.
- Adjust the quality slider if you want smaller files. 85 is a good balance for most photographs.
- Download a single file, or the whole batch as a ZIP.
Common use cases
- Cutting the weight of product photography on an online store.
- Converting a folder of photos before uploading them to a website.
- Improving Largest Contentful Paint on a page whose hero image is a JPG.
- Reducing bandwidth on a site where hosting is metered.
- Preparing photographs for a CMS that accepts WebP and has an upload size limit.
Frequently asked questions
- How much smaller is WebP than JPG?
- For photographs, usually 25 to 35 percent smaller at a visually equivalent quality setting, which is a smaller saving than converting from PNG because JPG is already a compressed format. The tool shows the exact figure for your file rather than making you take that on trust.
- Does converting JPG to WebP lose quality?
- A little, and it is unavoidable. Your JPG has already been through lossy compression once, and encoding to WebP is a second lossy pass, so a small amount of detail is discarded. At quality 85 the difference is not visible at normal viewing size. If you have the original photo in a lossless format, converting that directly to WebP gives a better result than going through JPG first.
- Should I convert my JPGs to WebP?
- For a website, usually yes — the saving is real and every current browser supports it. For photos you are archiving or may edit again, no. Keep those as they are, because each conversion between lossy formats costs a little quality and you cannot get it back.
- Do all browsers support WebP?
- Yes. Chrome, Firefox, Safari and Edge have all supported it since 2020, so it is safe to use on a public site without a fallback.
- Will this change my image dimensions?
- No. The width and height in pixels stay exactly the same — only the format and file size change. If you also need different dimensions, the image resizer will do that, and resizing usually saves far more than converting does.
- Can I convert several photos at once?
- Yes. Drop in as many as you like, add more at any point without starting over, and download them individually or as a single ZIP.
- Are my photos uploaded to a server?
- No. The conversion happens entirely in your own browser using the Canvas API. The files never leave your device, which also means there is no upload wait and no size limit imposed by a server.