Wikipedia:AutoEd

Warning: You take full responsibility for any actions taken using AutoEd. You must read and understand all relevant Wikipedia policies and abide by them when using this tool; failure to do so may result in being blocked from editing.

AutoEd (source) is a user script that helps to automatically make certain changes in articles. It also allows for easy design, use, and customization of user scripts related to automated article cleanup. It is based on CodeFixer, Plastikspork's script, and Formatter, but allows for further customization and the easier creation of new functions. It is currently maintained primarily by Plastikspork.

AutoEd should not be used to make edits that only remove whitespace or that make no change in the actual appearance of the article. Exceptions exist, such as fixes for syntax errors or removal of invisible characters; see WP:COSMETICBOT for details and links.