TinEye Client is an extension for Windows Explorer that adds TinEye to the context menu of image files.
TinEye is a reverse image search engine that looks up equal or similar images in the internet, so you can find where an image comes from, or download a larger version of the original image.
Step 1: right click any image on your computer:
Step 2: TinEye Client will automatically upload a compressed copy of the image:
Step 3: You are redirected to the TinEye results page: