CompressToKB

Compress a WebP image

WebP is a newer format that typically holds more visual detail than JPG or PNG at the same file size. Drop your image below and we'll find the highest quality that fits your target.

Your images stay on your device. Compression happens in your browser and files are never uploaded to our servers.

Compressing WebP files

Smaller than JPG at the same quality

WebP's compression is generally more efficient than JPG's, meaning it can hold a comparable amount of visual detail in a smaller file. This is why it's our default format when you don't pick one manually.

Supports transparency, unlike JPG

WebP can store a transparent background the same way PNG does, but usually at a fraction of the file size. That makes it a good middle ground when you need transparency but PNG is too heavy.

Supported everywhere that matters

Every major browser has supported WebP for years. The one place it can still cause friction is older desktop software that expects a JPG or PNG file specifically, in which case switch formats under Advanced options.

Questions about compressing WebP

Is WebP always the best choice?+

For web use and general sharing, yes, it's usually the smallest file at a given quality. Switch to JPG only if you know the destination specifically requires it, like an older printing or document system.

Does WebP support transparency like PNG?+

Yes. WebP supports full transparency, and typically produces a smaller file than an equivalent transparent PNG.

Can every app open a WebP file?+

Nearly all modern browsers, phones, and apps do. A small number of older desktop programs don't, if you run into that, re-export as JPG under Advanced options.

Other formats

Compress to an exact size

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