Visual Paradigm for UML (Personal Edition) for Java Platform 

Visual Paradigm for UML is a powerful but easy-to-use UML tool. VP-UML supports reverse engineering (code to model), code generation (models to code), import Rational, export/import XMI, report generator, MS Visio integration, plugin, template, etc.
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Automatic XML Dependencies 

Automatically generates dependencies (Makefile fragments etc.) between XML files (XSLT dependencies, XInclude dependencies etc.) Easily extensible. It helps you to effectively process XML files. Written in XSLT.
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Aioob XML Database Converter and Aioob XML Editor 

With The Free Aioob XML Editor, you can edit XSL, XML, XSD, XSLT and FO documents. The Aioob XML Database converter can convert almost any data source (i.e. Text files, Excel workbooks, Access databases, FoxPro 2.x, ODBC data source e.t.c) into XML.
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XmlShell - The Ultimate Lightweight XML Editor 

The Ultimate Lightweight XML Editor: 1.True side-by-side XML tree structural view and table/editor/browser views. 2.Grid-like table views to display table-like XML data. 3.Syntax-colored free-form text editor. 4.Intelligent popup list in editor.
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SemanticWorks 

Altova SemanticWorks 2006 is the ground-breaking visual RDF/OWL editor. Visually design Semantic Web instance docs, vocabularies, and ontologies then output the format of your choice. It is the sensible way to put the Semantic Web to work for you.
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Altova Enterprise XML Suite 

The Altova Enterprise XML Suite is a comprehensive XML development toolset that delivers the highest functionality and best product value. It includes Enterprise Editions of XMLSpy, MapForce, StyleVision, and SchemaAgent, plus the new SemanticWorks.
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