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JPG to WebP Converter

Convert JPG photos to WebP for smaller, faster web images — in your browser, no upload.

Drop one or many JPG photos, keep WebP as the output format and download the converted images, one by one or together as a ZIP file. The quality slider lets you choose between the smallest file and the best detail.

WebP is a modern image format from Google that every current browser supports. For the same visible quality a WebP photo is usually noticeably smaller than a JPG, so pages load faster and use less mobile data. Everything happens on your device: the photos are never uploaded.

How to use JPG to WebP Converter

  1. Drop your JPG files or choose them.
  2. Keep WebP selected under Convert to.
  3. Adjust the quality slider if you want smaller files.
  4. Download each image or all of them as a ZIP.

Why convert JPG to WebP

Website speed tools such as Google PageSpeed Insights often recommend serving images in next-generation formats like WebP. Smaller images mean faster pages, better scores and lower hosting traffic.

WebP supports both lossy compression, like JPG, and lossless compression, like PNG, and it can keep transparency. For photos, lossy WebP at a quality around the default gives files that look the same as the JPG at a smaller size.

JPG and WebP compared

How the two formats differ.

FeatureJPGWebP
CompressionLossyLossy or lossless
TransparencyNoYes
AnimationNoYes
Browser supportEvery browserEvery current browser
Best forPhotos, cameras, printingPhotos and graphics on websites

Tips for the best result

Start with the largest, highest-quality JPG you have: converting a heavily compressed JPG cannot bring back lost detail. If the WebP is not much smaller, lower the quality a little and compare.

Keep the original JPG files as a backup. Some older desktop programs and photo printers do not open WebP, and you can always convert WebP back to JPG with this tool.

Resizing at the same time

Large camera photos are often far bigger than a web page needs. Resize them to the width your site displays, for example 1600 pixels, before or after converting, and the WebP files shrink much further. The image resizer on this site does that in the same private, in-browser way.

For even smaller files, run the converted WebP images through the image compressor and compare the quality side by side.

Frequently asked questions

Is WebP better than JPG?

For websites, usually yes: WebP files are typically smaller at the same visible quality. For printing or sharing with old software, JPG is more widely accepted.

Are my photos uploaded?

No. The conversion runs in your browser and the files never leave your device.

Can I convert many JPG files at once?

Yes. Drop a whole batch and download them all as one ZIP file.

Will the image lose quality?

WebP lossy compression removes some detail, like JPG does. At the default quality the difference is very hard to see.

Should I resize before converting?

If the photo is larger than it will be shown, yes: resizing saves far more space than any format change.

Can I convert WebP back to JPG?

Yes. Choose JPG as the output format.

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