Free WebP Image Format Definition

What is WebP?

WebP is a modern image format that provides superior lossless and lossy compression for images on the web. Using WebP, webmasters and developers can create smaller, richer images that make the web faster.

Why Use WebP?

WebP lossless images are 26% smaller in size compared to PNGs. WebP lossy images are 25-34% smaller than comparable JPEG images at equivalent structural similarity (SSIM) quality indices. Lossless WebP supports transparency (also known as alpha channel) at a cost of just 22% additional bytes.

Browser-Based Conversion

Converting proprietary or older image formats to WebP historically required server-side processing. With modern zero-server capabilities, you can batch convert PNG to WebP locally without server upload, maintaining complete data privacy while significantly reducing file sizes.