ConvertorLab
Quality or KB targetNo uploadBatch + ZIP

Compress WebP Online

Shrink WebP images for faster web pages. Pick a quality level or an exact KB target, compress a whole folder at once, and download a ZIP. Free, no sign-up, and images stay on your device.

Import and settings

Add WebP files, choose the output quality, then optimize the batch.

Drag & drop WebP files here or

Supported: WebP, PNG, JPG. Limits: 200 files - 1 GB total.

80%

Use balanced quality for most website images. Use max compression only after checking text, edges, skin tones, and transparent areas.

Compression complete. Download individual files or save the full ZIP.

Images and downloads

The ZIP download unlocks after compression finishes.

No WebP images selected yet. Add images from the import panel. Large batches will scroll here without stretching the page.

Why compress WebP images?

WebP is already smaller than JPG or PNG at the same quality, which is why most site builders and CDNs serve it. But many WebP files are exported at 90% or even 100% quality, and that's far more than a web page needs. Re-saving at 70 to 80% often cuts the file a lot more with no difference you can see on screen.

Lighter images help pages load faster on mobile data. Page speed is something Google measures through its Core Web Vitals report, so smaller images are one of the easiest speed wins for a blog or online store.

How to compress WebP files

  1. Add images. WebP files work best, and you can also add JPG or PNG to get compressed WebP back.
  2. Set quality or a target. Around 75% suits most web images. Use Target size if a platform has a KB limit.
  3. Start compression and check the new size on each card.
  4. Download single files or the whole batch as a ZIP.

Good WebP settings for common uses

Blog post image75 to 80% quality, about 1200 to 1600 pixels wide
Product photo80 to 85% quality so textures and colors stay true
Thumbnail or card image65 to 75% quality, small dimensions
Hero banner75% quality. Use Target size to keep it under about 200KB

To change pixel dimensions, run the images through Resize Image first.

Transparency and animation

Transparent WebP images keep their transparent areas after compression. Animated WebP files are different: the browser only reads the first frame, so the output will be a still image. Use a dedicated animation tool for those.

Runs in your browser, free

Compression happens on your own device, so your images aren't uploaded anywhere. There's no account, no watermark and no file count limit beyond 200 images per batch. WebP export works in Chrome, Edge, Firefox and recent versions of Safari.

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WebP compression questions

How do I reduce WebP file size?

Add the WebP image, set quality to around 75% (or choose a Target size in KB) and press Start Compression. Download the smaller copy when it's ready.

Can I compress a WebP image to 100KB?

Yes. Choose 100 KB in the Target size menu. Quality is lowered first and dimensions only if needed.

Is WebP smaller than JPG?

Usually, yes. At similar visual quality a WebP file is often noticeably smaller than a JPG. Results vary from image to image.

Can I upload JPG or PNG here?

Yes. They will be compressed and saved as WebP. To keep the original format, use Compress JPG or Compress PNG instead.

Does it work with animated WebP?

No. Only the first frame is kept, so the result is a still image.

Are my images uploaded?

No. Everything runs in your browser on your device.