OpenForum has a built in search engine. The standard menu on the left has a search field. By typing words delimited by spaces and selecting to search, OpenForum will return a list of pages that contain the words scored on word frequency.

To increase search accuracy, pages can be assigned tags. Tags are single words delimited by spaces that can be used to group pages. The tags can be added when editing a page in a text field under the main content edit area. To search for a tag enter tag: followed by the tag name. For example searching for tag:Extension Menu will return all of the Wiki Markup Extensions relating to menus. This is because all Extension definition pages have Extension as a tag