WEBP is a highly compressible image format developed by Google for the purpose of optimizing web browsing and intended as a replacement for JPEG, PNG, and GIF file formats. It supports both lossy and lossless compression, as well as animation and alpha transparency. Using WebP, webmasters and web developers can create smaller, richer images that make the web faster.
Developed by: Google
Initial Release: September 30, 2010
File Extension: .webp
MIME Type: image/webp
Asociated Programs: Google Chrome, Opera, Picasa, PhotoLine, Pixelmator, ImageMagick, XnView, IrfanView, GDAL, …