Help:Gadget-HotCat
 | Be advised that you take full responsibility for any action performed using Gadget-HotCat. You must understand Wikipedia policies and use this tool within these policies, or risk losing access to the tool or being blocked. |
HotCat is a gadget that helps registered users easily remove, change, and add categories to Wikipedia pages. It has a suggestions list that will propose existing categories for auto-completion.