IMG·2·JSON is a simple Google App Engine python application which extracts metadata from images and returns the results as a JSON string. To use IMG·2·JSON all you need to do is perform a request for the fetcher-script URL hosted on Google App Engine.

And then it will return the mimeType, width, height, byteSize and EXIF metadata extracted from the image (such as Camera Manufacturer, Model, Orientation, Date, GPS position, etc). I found it useful for developing web application that needs to identify, sort or find images. How about developing a search engine for images?

Requirements: -
Demo: http://img2json.appspot.com/
License: License Free