TinEye is a reverse image search engine.

Users can upload an image to TinEye to...

  • find out where it came from;
  • how it is being used;
  • if modified versions of the image exist; or
  • find higher resolution versions

TinEye claims to be the first image search engine on the web to use image identification technology rather than keywords, metadata or watermarks; it is free to use for non-commercial searching.

Visit http://www.tineye.com/ to try it out.