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JPG to WebP

Convert JPG and JPEG photos to WebP to cut page weight, improve Core Web Vitals, and serve the same picture in a noticeably smaller file.

Runs entirely in your browser. Your files never leave your device.

Smaller files for the same picture

At matched visual quality WebP files are usually a quarter to a third smaller than JPG, and on images with large areas of even colour the gap is wider still. Across a page carrying a dozen photographs that is the difference between a hero section that appears immediately and one that trickles in — which is precisely what Largest Contentful Paint measures, and what search ranking increasingly reflects.

The one thing worth understanding before you convert is that this is a lossy-to-lossy step. The JPG has already thrown detail away, and re-encoding as WebP throws a little more away on top. At the default quality of 85 that second pass is not visible at normal viewing sizes, but it does mean you should convert from the best original you have rather than from a JPG that has already been through several rounds of compression and resizing.

How to convert JPG to WebP

  1. 1

    Add the JPG files

    Drop in up to 20 photos. Batch the whole set of hero and product images in one pass.

  2. 2

    Set the WebP quality

    At the same perceived quality WebP typically lands 25 to 35 percent below JPG. Quality 80 is the usual starting point; compare against the original before committing a whole library.

  3. 3

    Download the WebP

    Serve these instead of the JPGs and the page gets lighter without any layout or markup change. Keep the JPG originals around as a fallback if you support very old clients.

JPG to WebP questions

A small amount. Both formats are lossy, so the picture is decoded and compressed a second time. At quality 85 the difference is not visible at normal viewing sizes, but it is real, so always convert from the best original you have rather than a heavily compressed copy.

Typically twenty-five to thirty-five percent smaller than the JPG at comparable quality, and more for images with large flat regions. You can push it further with the quality slider when the pictures are decorative rather than detailed.

No. Every current browser displays WebP, Google indexes WebP images normally, and faster pages help rather than hurt. If you still need to support very old clients, serve WebP through a picture element with a JPG fallback.

Yes. Keep the JPGs as your archive and treat the WebP copies as output for the site. If you later need a different size, re-exporting from the original avoids stacking yet another round of compression.

Up to twenty files per batch. Drop them in together, convert once, and download the finished set as a ZIP with the original filenames and a .webp extension.

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Beyond Converting

Create the Image, Not Just Its Container

Converting swaps the wrapper — HEIC in, JPG out, same picture. When what you actually need is a different picture, the studio generates one from a description and hands it back in the format you were converting to anyway.

  • Describe an image and get it as JPG, PNG, or WebP
  • Edit a photo by typing what should change
  • Turn the result into a short video clip
Explore Studio Features
A crowded 1969 music festival scene generated from a written description