Compress WebP
Shrink WebP files with a quality slider — private, in your browser
Make WebP files smaller without redoing them
A WebP that was exported at maximum quality — or converted from a large PNG — can still be bigger than it needs to be. Compressing it re-encodes the image at a lower quality target, trimming file size so galleries, product grids and hero images load faster. This tool does that locally, with a slider you can dial in against a live preview.
Drop one WebP or a whole set, move the quality slider until the preview still looks right, and download the smaller file — or a ZIP of the batch. Every image shows its before and after size, so you can see exactly how many kilobytes you saved.
How to compress a WebP
- Drop your WebP images into the box above, or click to choose them.
- Lower the quality slider and watch the preview — 75–85 is a good starting point.
- Compare the before/after size shown under each image.
- Click Download compressed WebP, or grab the whole batch as a ZIP.
Why compress WebP images?
Faster pages and less bandwidth
Smaller images mean quicker loads and lower hosting and CDN costs — a real win on pages that carry lots of pictures.
You control the trade-off
The quality slider and live preview let you find the exact point where the file is as small as possible but still looks the way you want.
Private and instant
Because compression runs in your browser, there is no upload wait and nothing is stored on a server — ideal for client and pre-launch assets.
Frequently Asked Questions
How does compressing a WebP make it smaller?
Lowering the quality value re-encodes the image with WebP's lossy compression, discarding detail the eye barely notices. Fewer bytes are stored, so the file shrinks while the picture still looks right.
Will compressing ruin the image?
Not if you keep the slider reasonable. Around 75–85 usually looks identical to the original while cutting size noticeably; drop lower only when you need the smallest possible file and can accept softer detail.
Does it keep WebP transparency?
Yes. Transparent regions are preserved through compression, so logos and cut-outs stay see-through in the smaller file.
Is my WebP uploaded to a server?
No. Compression happens entirely in your browser using the canvas, so your files never leave your device.
Can I compress a batch of WebP files?
Yes. Add several WebP images at once and download them all as a single ZIP, each compressed with the same quality setting.