Compress WebP
Reduce WebP file size with a quality slider. Live before/after KB comparison - runs entirely in your browser.
Drop an image here or click to select
WebP only - up to 50 MB
or paste an image with Ctrl+V / ⌘V
Your image is processed locally. Nothing is uploaded.
How to use Compress WebP
- 1
Upload your WebP image
Drop a WebP file onto the tool or click to select it from your device.
- 2
Adjust quality
Drag the quality slider. WebP at 75% quality is typically 40-55% smaller than the original with minimal visible difference.
- 3
Watch the live comparison
Before and after file sizes update automatically as you move the slider.
- 4
Download the compressed WebP
Click the download button. Everything runs in your browser - no file upload.
When to compress a WebP further
WebP files exported from design tools, CMS systems, or screenshot utilities are often encoded at or near lossless quality by default. The file size is larger than it needs to be for web delivery. Compressing to 75-85% quality typically halves the file size with no meaningful change to visual quality at normal screen viewing sizes.
E-commerce platforms and content management systems often impose file size limits per image upload. If your WebP exceeds the threshold, compression is the fastest path to getting it accepted without switching to a less efficient format. Staying in WebP preserves the format's inherent size advantage over JPG and PNG. If you need to hit an exact kilobyte target, the resize to KB tool can find the right quality level automatically.
WebP vs. JPG compression behavior
WebP and JPG both use lossy compression, but WebP is typically 25-34% more efficient at the same perceptual quality. A WebP compressed to 75% will look better than a JPG compressed to 75%, and will also produce a smaller file. If you need the smallest possible file for a given quality target and your delivery context supports WebP, staying in WebP rather than converting to JPG is almost always the better choice.