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Compress WebP images

Make WebP images smaller for your website, or convert them to JPG or PNG.

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WebP · JPG · PNG · GIF · SVG · TIFF

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How to compress WebP files

  1. Add your files

    Drop files on the box, paste them or choose them from your device. Nothing is uploaded.

  2. Check the settings

    The default preset suits most files. Change quality, size or format if you need a smaller file.

  3. Download the result

    Save each file or all of them as one ZIP. If a file cannot get smaller, you keep the original.

WebP in a nutshell

WebP is an image format Google introduced in 2010 to make web pages lighter. It has two separate modes: lossy WebP, based on the intra-frame coding of the VP8 video codec, and lossless WebP, a different algorithm designed to beat PNG. Both modes support transparency, and both can be animated. Every current version of Chrome, Edge, Firefox, Safari and Opera displays WebP, and Safari has done so since version 14 in 2020.

Google's own WebP documentation (opens in a new tab) reports lossless WebP files 26 % smaller than PNGs and lossy WebP 25–34 % smaller than JPEGs of comparable quality, measured on Google's test images. Your results depend on the picture, which is why the tool shows the actual sizes side by side.

How WebP compression works

Lossy WebP predicts each block of pixels from neighboring blocks that are already decoded and stores only the difference, then rounds away detail as JPEG does. Block sizes are flexible, and an in-loop filter smooths block edges, so at low quality WebP tends to look soft and blurry rather than blocky. Lossless WebP combines several transforms (predicting pixels from neighbors, decorrelating colors, building a color cache) before entropy coding.

The quality slider in this tool affects lossy WebP the same way it affects JPEG: lower numbers mean smaller files and less fine detail. For graphics with flat colors and text, lossless compression is often the better choice because it keeps edges perfectly sharp; this tool writes only lossy WebP, so choose PNG output for such graphics.

When to use WebP and which settings to pick

SituationRecommendation
Photos on your websiteLossy WebP, quality 70–80, width about twice the layout width
Logos and UI graphics with transparencyWebP at quality 90 if the edges stay clean, otherwise lossless PNG
Replacing an animated GIF on a siteAnimated WebP keeps full color and soft transparency; create it in your editor, since the tool keeps animated WebP files as they are
Email attachment or document for a clientConvert to JPG; older desktop software may not open WebP
Print shopDo not use WebP; ask for TIFF, PDF or high-quality JPG

WebP images are limited to 16383 pixels on each side. Very wide panoramas have to be resized or kept in another format.

Common issues

  • "This file type is not supported." Some upload forms, older Office versions and many print services still reject WebP. Convert the output to JPG or PNG for them.
  • Re-compressing a WebP that came from a website. It was usually encoded at a moderate quality already, so a second lossy pass mainly adds blur. Resize instead, or accept the original if the tool reports it is already optimal.
  • Fine textures look smeared. At low quality, WebP flattens grain, fabric and foliage. Raise the quality or compare with JPG at the same size.
  • Even smaller files for the web. AVIF often beats WebP on photos, at the cost of slower encoding; pick it in the output format menu. AVIF output does not embed the color profile, so check wide-gamut photos.

WebP questions

Is WebP lossy or lossless?

Either. The format has both modes, and a file does not say which one it uses in its name. This tool writes lossy WebP with the quality you set; for lossless output, choose PNG.

Can I open WebP files on Windows and Mac?

Windows 11 opens them in the Photos app (Windows 10 may need the free WebP Image Extensions from the Microsoft Store), and macOS Big Sur and later open them in Preview. Image editors such as Photoshop (since 2022), GIMP and Affinity also read WebP.

Should I convert all my JPGs to WebP?

For a website, yes, it usually pays off. For your personal archive, no: each lossy conversion loses a little detail, and JPEG is still the more universal format.

Does WebP keep EXIF data?

WebP can carry EXIF, XMP and a color profile. With metadata removal on, the tool drops EXIF and keeps the rotation and any non-standard color profile, as for other image formats.

See also

The image compressor accepts every supported image type in one batch. For an explanation of lossy versus lossless, read how it works.