Compress
Compress WebP Images
Squeeze WebP images down further and see how much you saved. Compression runs on your device and your files are never uploaded.
Your images never leave your device
How to use Compress WebP
- Drop your WebP files on the page or pick them from your device.
- Lower the quality setting until the size is small enough, checking the size before and after.
- Download each compressed WebP, or all of them together as a zip.
Frequently asked questions
Why is compressing a WebP less effective than compressing a JPG?
WebP already uses more efficient compression. A JPG has more room to shrink. WebP files saved in lossless mode or at very high quality still compress well.
Does compressing a WebP remove transparency?
No. Transparent areas are preserved.
Will compression reduce the quality of my WebP?
Yes, a little, since it is lossy. The quality setting sets how much. Moderate values are usually hard to tell apart from the original at normal size.
Are my images uploaded?
No. Compression runs in your browser using WebAssembly. Your files stay on your device, and there is no signup or watermark.
About Compress WebP
WebP is already one of the most efficient formats, so the gains from compressing a WebP are smaller than for a JPG or PNG. The biggest wins come from files that were saved at a high quality setting or in lossless mode. A lossless WebP that is re-saved at a lossy setting can shrink dramatically, while a WebP that was already optimized for the web may only drop a little.
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Compression is lossy, so each pass discards some detail. Use the quality setting to find the lowest value that still looks right at the size the image will appear on screen, and compare with the size shown before and after. Look at text, thin lines and smooth gradients, which show artifacts first. Work from the original image where possible, because compressing a file that was already compressed stacks the loss.
The pixel dimensions matter more than the setting. If the image is displayed at 800 pixels wide on your site, a 3000 pixel original is wasted bytes, so use the resizer first. WebP keeps transparency, so logos and cut-outs retain their background. Everything runs in your browser, you can process a batch and download a zip, and nothing is uploaded.