This is a simple module to strip categories from wikitext. For example, if passed the code "foo[[Category:Some category]]", it will return only "foo".

The module properly handles categories escaped with the colon trick, categories whose names include invalid characters such as ">", and categories that are surrounded with nowiki tags. However, it does not support complex wikitext such as nested links or magic words like __TOC__. Even so, it should still remove the vast majority of categories from any given wikitext.

{{#invoke:Suppress categories|main|input text}}
Code Output
{{#invoke:Suppress categories|main|foo}} foo
{{#invoke:Suppress categories|main|foo[[Category:Some category]]}} foo
{{#invoke:Suppress categories|main|foo[[Category:Some category]]bar[[Category:Another category]]}} foobar
{{#invoke:Suppress categories|main|foo{{{some_parameter|[[Category:Bar]]}}}}} foo
{{#invoke:Suppress categories|main|foo[[Category:Bad ca[]tegory link]]}} foo[[Category:Bad ca[]tegory link]]
{{#invoke:Suppress categories|main|foo[[:Category:Colon trick]]}} fooCategory:Colon trick
{{#invoke:Suppress categories|main|foo[[Category:Piped link|bar]]}} foo
{{#invoke:Suppress categories|main|foo[[Category:Piped link|ba[]r]]}} foo
{{#invoke:Suppress categories|main|foo[[non-category link]]}} foonon-category link
{{#invoke:Suppress categories|main|foo[[ Category : Some category with spaces ]]}} foo