Free XHTML WYSIWYG Editor - Version 1.4 XStandard is the leading standards-compliant plug-in WYSIWYG editor for Windows and browser-based content management systems (IE / Firefox). It generates clean XHTML Strict or 1.1 markup, uses only CSS for formatting, and ensures the clean separation of content from presentation. The Lite version is free for commercial use. Pro version uses Web Services to power a spell checker, file drag & drop, referencing of files in remote libraries, communicating with third party systems and importing third-party content.