| Multiplatform availability: Windows, Mac OS X, Linux, Solaris | Non blocking operations, you can perform validation and transformation operations in background |
| Visual WYSIWYG XML editing mode based on W3C CSS stylesheets. | Visual DITA Map editor |
| Closely integration of the DITA Open Toolkit for generating DITA output | Support for latest versions of document frameworks: DocBook and TEI. |
| Support for XML, XML Schema, Relax NG , Schematron, DTD, NVDL schemas, XSLT, XSL:FO, WSDL, XQuery, HTML, CSS | Support for XML, CSS, XSLT, XSL-FO. |
| Validate XML Schema schemas, Relax NG schemas, DTD's, Schematron schemas, NVDL schemas, WSDL, XQuery, HTML and CSS | Manual and automatic validation of XML documents against XML Schema schemas, Relax NG schemas, DTD's, Schematron schemas, and NVDL schemas |
| Multiple built-in validation engines (Xerces, libxml, MSXML 4.0, MSXML.NET) and support for custom validation engines (Saxon SA, XSV, SQC). | Multiple built-in XSLT transformers (Saxon 6.5, Saxon 9 Enterprise (schema aware), Xalan, libxslt, MSXML 3.0 / 4.0, Microsoft .NET 1.0, Microsoft .NET 2.0), support for custom JAXP transformers. |
| Visual schema editor with full and logical model views | Generate HTML documentation from XML Schemas |
| Ready to use FOP support to generate PDF or PS documents | XInclude support |
| Context sensitive content assistant driven by XML Schema, Relax NG, DTD, NVDL or by the edited document structure enhanced with schema annotation presenter | New XML document wizards to easily create documents specifying a schema or a DTD |
| XML Catalog support | Unicode support |
| Conversions from DTD, Relax NG schema or a set of documents to XML Schema, DTD or Relax NG schema | Syntax coloring for XML, DTD, Relax NG compact syntax, Java, C++, C, PHP, Perl, etc |
| Easy error tracking - locate the error source by clicking on it | Easy configuration for external FO Processors |
| Apply XSLT and FOP transformations | XPath search, evaluation and debugging support |
| Preview transformation results as XHTML or XML or in your browser | Support for document templates to easily create and share documents |
| Import data from a database, Excel, HTML or text file | Convert database structure to XML Schema |
| Batch validate selected files in project | Canonicalize and sign documents |
| Configurable actions key bindings | Associate extensions with editors provided by the Oxygen XML Editor plugin plugin. |
| XSLT Debugger with Backmapping support | XSLT Profiler |
| XQuery Debugger with Backmapping support | XQuery Profiler |
| Model View | Attributes View |
| XQuery 1.0 support | WSDL analysis and SOAP requests support |
| XSLT 2.0 full support | XPath 2.0 execution and debugging support |
| Document folding | Spell checking supporting English, German and French including locals |
| XSLT refactoring actions | Generate large sets of sample XML instances from XML Schema |
| Pretty-printing of XML files | Drag&drop support |
| Outline view in sync with a non well-formed document |