Compress WebP Images Online

Recompress still WebP by quality or a KB/MB limit. Compare size and detail before download; if the new file is no smaller, the original WebP is kept.

Compress and compare WebP images

Images processed on your device

Image contents are compressed in your browser · Original images remain unchanged

Or drag and drop images here

Up to 30 images per batch · JPEG, PNG, WebP, GIF or SVG
Try sample images:

Compress WebP in 3 steps

01

Choose images

Choose up to 30 still WebP images; JPG, PNG, GIF and SVG are also accepted for WebP output.

Choose a setting for still WebP

This page preselects WebP output. For an existing WebP, start each attempt from the original; re-encoding can change detail. An 80% quality setting is an encoder input, not a promise of 80% file-size savings.

You needChoose in the toolCheck the result
Reduce a still WebP’s file sizeKeep WebP output and try By quality from 80%; lower it if the image remains usable.Compare KB and inspect text, textures and gradients. If re-encoding is no smaller, the original WebP is kept.
A cutout with transparencyKeep WebP output; raise quality if soft edges or shadows are affected.View the download on light and dark backgrounds to check edges, colors and transparency.
Meet a KB/MB limitSelect By target size, enter a limit for each image and keep WebP output.Check each file’s reached/not reached status. A very low limit may remain unreachable after quality is reduced.

When the original WebP is kept

If re-encoding is no smaller, the original WebP is downloaded instead of a larger file. An original already below the KB/MB limit is also not re-encoded. Its existing metadata or animation may therefore remain; check the result notice to see when the original was used.

100% quality and animated WebP

The 100% setting still uses the browser WebP encoder; it is not a pixel-identical lossless mode. Re-encoding an animated WebP produces a still image, while a retained original may still move. Open the download before replacing an image on your site.

If WebP does not shrink or looks different

File size does not decrease
The image may already be optimized. Try lower quality from the original and compare detail; keep the original if the saving is not useful.
The KB/MB limit is not reached
Raise the limit or use Image Resizer to reduce pixel dimensions before compressing. This page keeps the original width and height.
Transparency edges or motion change
Raise quality and inspect edges on two backgrounds. To retain animated WebP, avoid a re-encoded result; keep the original or use a workflow that supports animated WebP.

Where are the images processed?

Compression reads images and creates downloads in the browser without sending image content to an KitoTool compression API. The page still makes general requests and loads a library for ZIP. Originals on your device are unchanged; re-encoded files may omit metadata, while retained originals may keep it.

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