Similar Image Based Search Engines

Gazopa is an awesome image-based search engine. The site lets users either upload an image or draw one and then uses that picture to search for similar images online.The results are mostly fun and sometimes eerily accurate. This one has more results from Chinese websites.

Tin Eye 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.To date, it has indexed 1,719,139,600 images from the web to help users in searching.