feature_purifier feature purifier HTML purifier HTML Purifier is a standards-compliant HTML filter library written in PHP and integrated in Tiki. HTML Purifier will not only remove all malicious code (better known as XSS) with a thoroughly audited, secure yet permissive whitelist, it will also ensure that your documents are standards-compliant. Keep in mind that HTML Purifier is not HTML5 compatible and may rewrite HTML5 syntax and produce unwanted results. 