Word Cleaner is a tool designed to help administrators identify commonly used words on their forum that take up a great deal of space in phpBB's search engine database tables. When a word has been used too often, it is no longer useful as a search term. phpBB normally ignores extremely common words automatically, but this tool allows the administrator to take a more direct hand in this process and remove words that might be common but have not yet reach the internal threshold settings.
Word Cleaner is based in part on a blog entry by Dave Rathbun. Thanks to Patrick O'Keefe for suggesting features for previewing words before deletion and skipping words.