Little CMS Color Translator 3.5 released I am glad to the announce the release 3.5 of the Little CMS Color Translator tool . Introducing a brand new file format: WebP. WebP is an image file format which contains image data with both lossless and lossy compression. Developed by Google, WebP basically is a derivative WebM video format. The format is capable of reducing image file size up to 34% smaller than JPEG and PNG images while retaining high-quality.