Autobuilder is a general term for any program that is used to automatically create maps in Everybody Edits. Autobuilders, through various methods, are able to place bricks on a map faster than a normal user.
Autobuilders have been used in many ways. Most commonly, they are used to create large images in a map, however they can also be used to save and reload maps, and to create animations. Sadly; since Autobuilder is outdated, you can no longer use the free version. You must download it.