Free validating xml software for windows

XmlValidator is a FREE tool that validates XML documents against there schemas.
It uses all installed version MSXML to validate the XML document, and reports its findings. This is a useful tool when developing XML applications.

AltovaXML 7.3 is considered as a free yet very useful XML standards processor that includes the Altova XSLT 1.0 and schema-aware XSLT 2.0 engine, XQuery engine, and XML validating parser. Now developers can use the same engines found in Altova XMLSpy 2007 within their own applications, free of charge. AltovaXML includes COM, Java, and .NET interfaces and supports command line operations. It is standards-based and is the only XML processor to support Office Open XML files.

Enhancements: Support for tables of contents, rendering and editing of database XML fields, and support for design fragments.

This is a free XSLT 1.0, XSLT 2.0, XQuery, and XML validation processor AltovaXML is a FREE XML standards processor that includes the Altova XSLT 1.0 engine, schema-aware XSLT 2.0 engine, XQuery 1.0 engine, and XML validating parser.
Now developers may use the same validator and processors found in Altova_s award-winning XMLSpy, MapForce, and StyleVision XML tools in their own applications.
Functions include well-formedness checking, DTD- and XML Schema-based validation, XML transformations via XSLT 1.0 , schema-aware XML transformations via XSLT 2.0, XML queries and transformations via XQuery, and more.
AltovaXML includes COM, Java, and .NET interfaces, so it can be used from a variety of different applications. It also supports command line operations. AltovaXML is standards-based in compliance with the respective W3C specifications and is the only royalty-free XML standards processor to support schema-awareness in XSLT 2.0.
There is no license keycode required to activate AltovaXML, and developers may use it in their applications royalty-free. Simply download AltovaXML to power your applications with the very engines that have helped make Altova software the industry_s leading XML development toolset.
System requirements:
- Pentium III processor, 800 MHz recommended,
- 64MB RAM,
- 50MB available on hard-disk

XML Viewer is a free program that offers tree view on XML with data inspector and syntax highlighted view on source. Tree structure can be printed.

Ruby XML Library: High-level non-validating XML parser component that is free for both commercial and non-commercial use.
Main features:
- Load/save XML files to an in-memory document object model (DOM).
- Add name/value attribtes to nodes.
- Compress nodes or entire sub-trees using in-memory Zip compression.
- AES encrypt the content of a node.
- Numerous methods for iterating over the nodes in a document.
- Numerous methods for searching and sorting nodes in a document.
- API designed to make it easy to do frequently encountered tasks when working with XML.
- Makes it easy to handle binary data (such as image data) within XML files.