Convert JPG to WebP

Re-encode JPEGs as WebP to cut page weight without a visible change.

Output

Drop an image to start

Runs in your browser. Nothing is uploaded.

WebP generally reaches the same visual quality as JPEG in noticeably fewer bytes, which is why it has become the default for images on the web. Converting a folder of photographs is one of the cheapest things you can do to a slow page.

It is a re-encode of something already lossy, so keep the quality high — around 80% — rather than compressing hard twice. If the original is available at full quality, converting that is better than converting the JPEG.

Dimensions, colour and orientation come across unchanged. If the images are headed for a web page, resizing them in the same pass is worth doing: the conversion saves you a third, and not serving a 4000-pixel photograph into an 800-pixel slot saves considerably more than that.

Step by step

  1. 1Drop in your JPEG files.
  2. 2Keep the quality high — this is a second lossy pass.
  3. 3Press Convert, then download one file or all of them.

Questions

How much smaller is WebP than JPEG?

Typically 25–35% at matched quality, though it varies a lot with the picture.

Does converting twice hurt the image?

A little. Each lossy encode discards something. Stay at high quality and one hop is usually invisible.

Do I need a JPEG fallback?

Not for browsers any more. Only if the images are consumed by older desktop software.

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