Instructions:

Get an image from your PC and drag it over the left frame. Or get an test image from the top of the page and drag it on that frame.

The image will be loaded on to a canvas (on the bottom frame). At this point, if you save the image, you loose every EXIF info from it.
This library will give you the possibility to add some EXIF info to the Canvas image, so you can save some extra info on it before you save it locally.

This tool is good if you want to save some attributes on the fly from a canvas.

Note: This is just a test. Many tags are still missing! Just use it as it is. Press F12, to open the console, if you want to see more info about your JPG!

Tipp: Press the right button on an image to parse the exif section and get a list directly on this page!