Converting JPEG to WebP provides 25-35% file size reduction at equivalent visual quality. WebP uses more efficient prediction and entropy coding than JPEG's DCT-based compression, producing noticeably smaller files.
For web development, converting your existing JPEG images to WebP is one of the quickest wins for page performance. If your site currently serves JPEG images, switching to WebP can reduce image bandwidth by a quarter to a third.
With ImgTools, upload your JPEG, switch to the Convert tab, and select WebP. You can adjust the quality slider for additional control over the file size and quality balance. For most web images, WebP at 80% quality matches JPEG at 90% quality visually.
WebP browser support is excellent in 2026. Over 97% of browsers support WebP natively. Use the picture element to provide JPEG fallback for the small percentage of browsers that do not support WebP.
All conversion happens in your browser using the Canvas API. Your images stay on your device throughout the process.