Multicolr Search Lab : We extracted the colors from 20 million Creative Commons images on Flickr to make the images searchable by color.
Zest Documentation Browser : Offline search tool for developers. Find what you need without the need for Internet access. Allows finding detailed information not available in docu...
howdoi : Instant coding answers via the command line.
Caire : Caire is a content aware image resize library
Trimage (lossless) image compressor : Trimage is a cross-platform GUI and command-line interface to optimize image files via optipng, pngcrush, advpng and jpegoptim
TinEye is a reverse image search engine. It finds out where an image came from, how it is being used, if modified versions of the image exist, or if there is a higher resolution version.