Compress WebP

Compress a static WebP for a lighter web image.

Supported files: WEBP · Up to 50 MB per file · up to 50 files

Smaller sizeHigher quality
  • Free
  • No sign-up
  • No file upload

Example result

Example settings: Quality 80
Example result: Compress WebP (Before)
Before
Example result: Compress WebP (After)
After

−44%

Before · terrace.webp312.1 KB
After · compress-webp-1.webp173.7 KB

How to compress a WebP image

  1. Choose your still WebP images.

  2. Set the quality or enter a target size in KB.

  3. Leave resizing off if the width and height must stay the same.

  4. Check the new sizes and download.

Recompressing a WebP that is already compressed

Most WebP files on the web are already lossy, so compressing one again means decoding it and encoding a new lossy WebP at your Quality. A WebP exported at high quality can shrink a lot. One that was heavily compressed may not get smaller, and with no target set you then get your original file back.

No background is added and the alpha channel is stored separately, so transparent areas stay transparent. Each lossy pass removes a little more detail, so start from the original export, not a copy that was compressed before. To meet an upload limit, a Target size first searches lower quality values and reduces dimensions only when you allow it.

Supported files

WEBP → WEBP

  • Up to 50 MB per file · up to 50 files
  • Total input: 300 MB
  • Total output: 150 MB
  • Maximum image size: 40 MP · 16,384 px

Static images only. Animated PNG and WebP are not supported.

Frequently asked questions

Can WebP compression also reduce image dimensions?

Only when you set a target size and allow resizing. Otherwise the width and height stay the same.

What happens if my WebP is lossless?

It is re-encoded as lossy WebP at your Quality, so pixels can change slightly. The file often gets much smaller, but check text and sharp edges. If the lossy version is larger and no target is set, the original file is returned unchanged.

How are kilobytes counted for the target size?

One KB is 1,024 bytes, the same unit used for the sizes in the result list. Some upload forms count 1 KB as 1,000 bytes, so enter a little less than the limit, such as 190 for a 200 KB cap.

Will the compressed WebP keep its file name?

No. The result is named after the original with -compress added, so hero.webp becomes hero-compress.webp. Rename it before uploading if your site expects the original name.

Are my files uploaded to a server?

No. Files are processed in your browser on this device and are not sent to BlurMe servers.

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