Google on Thursday announced Guetzli, a new contribution to its evolving set of tools for the open source community. Guetzli is an encoder that allows JPEG files to be compressed as much as 35 percent, resulting in much faster Web page loading. "Guetzli," which means "cookie" in Swiss German, allows users to create smaller JPEG images while maintaining compatibility with existing Web browsers, image processing applications and the existing JPEG standard, noted Robert Obryk and Jyrki Alakuijala, software engineers at Google Research Europe.