It is a strictly validating DocBook, DITA, MathML, XHTML and XML editor.
SyncRO Soft SRL
Edit XML files, and connect with XML databases and content management systems.
XML Explorer validates XML files, XSD schemas and XPath expressions.
Sun Mycrosystems Inc
This is a development kit widely used for Server programming using Java platform.
Encoder SDK is a toolkit that allows creating applications which use API.
ffice Software Development Kit is an add-on for OpenOffice suite.
A tool that converts Office Open XML templates to Office Open XML documents.
fast open pdf sdk activex, search the text in multipage PDF files.
b2xtranslator allows you to turn an Office binary file into an Open XML file.
Allows you to view and edit Open XML directly from within the Word 2007.
FictionBook is an open XML-based e-book format, popular in Russia.
Serna Free XML editor is an easy-to-use open source WYSIWYG XML editor.
The NCV XML Reader is a FREE tool to open and read UAD and MISMO XML files.
XML Parser and SDK includes header and .lib files, and documentation.
Open Exhibits is a software development kit (SDK) for Flash that is free.
Digital Learning Sciences
It is a Java-based open source XML repository with search and discovery system.