Free Download: http://www.rymdnisse.net/download/blender-addons/easyfx/
This is a add-on for Blender which allows you to do post-production directly from the image editor, and EasyFX will automatically build your composition node tree. Once an image has been rendered you can easily start enabling effects, tweak values and manipulate the image to your liking. The add-on is beginner friendly and easy to use, while advanced users still can access the node tree in the compositor to make manual changes or keep building on the generated node tree.
I will keep working on this add-on, to add more effects and generally improve the add-on. So I’d love to hear feedback on what could be improved and any effects as you would like to see being added!