Yueser

WebP Converter

WebP is usually 25–35% smaller than JPG, but older software can't open it, so converting back is sometimes necessary.

Drag in images, or Choose file

Convert between any common formats · No upload
Quality has no effect when converting to PNG

PNG is a lossless format,toBlob so the quality setting has no effect on it. Quality only matters when converting to JPG/WebP.

When to use it

  • Images on your site, blog, or in an app bundle are slowing down loading, and you want to batch-convert JPG/PNG files to WebP to cut their size.
  • A downloaded WebP asset won't open in older Photoshop, Office, or some admin system, and you need it back as JPG or PNG.

When not to

  • The recipient's software definitely doesn't support WebP and you only need to deliver one image — send JPG/PNG and skip an unnecessary lossy step.
  • You need the motion in a GIF or animated WebP, or rely on EXIF capture data — canvas keeps only the first frame and drops the metadata.
Limits and privacy

Conversion runs in your browser, and images are never uploaded. Limits: GIFs and animated WebP keep only the first frame; JPG output fills transparent areas with white; EXIF is not preserved; the quality slider does nothing for PNG; browsers that can't encode WebP may fall back to PNG data, and older Safari/IE can't open WebP at all.

Frequently asked

Is WebP always smaller than JPG? What quality should I choose?

No. At similar quality WebP is usually 25–35% smaller than JPG, but small images, already heavily compressed JPGs, or mostly flat graphics can come out larger. The quality slider runs from 30 to 100 with a default of 85. When the target is PNG the quality setting has no effect, because PNG is lossless.

What happens to transparency when WebP is converted to JPG?

JPG has no alpha channel, so this tool fills transparent areas with solid white, and semi-transparent edges blend into white. Choose PNG or keep WebP if you need transparency. Multi-frame files such as GIFs and animated WebP export only their first frame.

Why won't some programs open the WebP file I just made?

WebP needs a reasonably new decoder: IE doesn't support it at all, older Photoshop needs a plugin, and some older Office versions and image viewers can't read it. Safari supports it from version 14. If you don't know what the recipient uses, convert to JPG or PNG instead.