Oxygen is a multi-platform XML Editor, XML Author, XSLT/XQuery Debugger and Profiler. Supports visual XML editing driven by CSS stylesheets. It supports XML, XSL, XQUERY, FO, XSD, RNG, RNC,DTD, Schematron, WSDL and CSS documents. It offers a powerful and intelligent code insight that guides the user to write valid XML content.

oXygen XML Developer
Oxygen XML Developer is a multi platform XML Editor. Supports visual XML editing driven by CSS stylesheets with specializations for DITA, DocBook 4 and 5, TEI P4 and P5, XHTML.

A7Soft xml2csv
A7Soft xml2csv is a powerful command line tool for converting XML files to CSV values

oXygen XML Author
Oxygen XML Author is a multi platform Visual XML Editor. Supports visual XML editing driven by CSS stylesheets with specializations for DITA, DocBook 4 and 5, TEI P4 and P5, XHTML.

oXygen XML Editor and XSLT Debugger
Oxygen is a cross platform XML Editor,XSLT/XQuery Debugger and Schema Editor. Can validate XML, XSD, RNG, DTD, Schematron and XSL. Features XSLT transformation and FOP support, code insight,outliner, SVN Client and native XML Databases support.

XML Spy
Countless XML technologies - One powerful XML Spy 4.4 Suite! XML Spy now offers a comprehensive and easy-to-use product family to facilitate all aspects of Advanced XML Application Development: Award-winning IDE, Document Editor, and XSLT Designer