MWB is a tool for Microsoft Windows 2000 (and newer) that helps editing pages of wikis operated by the Wikimedia foundation and Wikia. Other wikis using the MediaWiki software might work as well or the source code of MWB could be adapted to work on these.
The tool can build a list of pages and assist in doing edits to these pages. Changes to pages can be specified by defining hierarchical search and replace rules.
MWB loads a page from the list, applies the changes and displays the result in a window that contains the same diff or (pre)-view as provided by a normal webbrowser. The user has the ability to do additional edits in a text editor window. Previewing and diffing display is provided by the MediaWiki server generated html output.
MWB is not a bot, because its normal use is intended for interactive edits under direct user control. Users are expected to carefully review each diff before they save an edit—the same as when using a simple webbrowser.
MWB can assist in doing tedious repetitive/complicated editor-work, like exchanging one template call with another or replacing names of template parameters. MWB has some limited wikitext parsing capabilites.