Xmplify XML Editor

Xmplify XML Editor is "a powerful new XML editor built specifically for Mac OS X". Xmplify facilitates a full text editing environment with "XML Schema-based auto-completion, automatic document validation, XSLT and XPath support, live HTML preview and much more". The clean and colour-coded interface allows users to see their document's structure at a glance. The automatic document validation facilitates catching and correcting well-formedness in an efficient and immediate manner. Xmplify "is used by a diverse range of leading businesses, educational & research institutions and individuals in 50 countries around the world".