Compress WebP Images

Recompress WebP images with lossy or lossless modes, resize them, or convert back to JPG or PNG.

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How to use Compress WebP

Upload your WebP files.
Choose lossy (smaller) or lossless (pixel-perfect), and set quality.
Optionally resize or convert to JPG/PNG.
Batch several files and download them together as a ZIP.

About this tool

Compress WebP recompresses WebP images using lossy or lossless mode, and can convert them to JPG or PNG when you need wider compatibility. Transparency is preserved in WebP and PNG output.

Recommended settings

Lossy WebP is ideal for photos; lossless suits graphics and transparency.
Very high quality lossy WebP can rival lossless at a fraction of the size.

Supported formats

Input: WEBP. Output: WEBP, JPEG, PNG.

Quality & file size

Lossy formats (JPEG, WebP, AVIF) trade detail for smaller files as you lower the quality; PNG stays lossless regardless of the slider. The tool always shows the original and result sizes so you can judge the trade-off, and it never recommends a result that is larger than your original as an “optimisation”.

Privacy

Every image is decoded, transformed and re-encoded entirely in your browser using the Canvas API and a Web Worker. Files are never uploaded, are not stored in localStorage, and are cleared from memory when you remove them or close the page.

Common issues & limitations

Animated WebP is processed as a single still frame.
All processing happens on your device; nothing is uploaded, so very large batches are limited by your available memory.

Frequently asked questions

What is the difference between lossy and lossless WebP?

Lossy WebP discards detail for much smaller files (great for photos). Lossless WebP keeps every pixel and suits graphics and transparency-heavy images.

Can this tool handle animated WebP?

No. Animated WebP is treated as a single still frame. Only the first frame is processed, which the tool makes clear on upload.

Are my images uploaded to a server?

No. Every image is decoded, processed and encoded entirely inside your browser using the Canvas API. The files never leave your device and are discarded when you close the page.