Expert Debugger is a free easy-to-use tool for debugging PHP scripts. Expert Debugger uses the DBG PHP Debugger and allow to debug scripts via network or on local computer. You can run scripts in step-by-step mode and to trace values of any variables and script output. The debugger has a comfortable interface and can be integrated with IDE or editors.

Tito Web Studio is a feature rich and extremely effective quality assurance tool for web developers and QA analyst. This enterprise software consists of JavaScript debugging and profiling functions. Tito Web Studio's JavaScript Profiler assists developers profile untested code to locate performance bugs. Tito Web Studio's debugger is capable of handling complex, lengthy code efficiently and supports viewing of cached XML documents that use XSLT

AltovaXML is a FREE XML standards processor that includes the Altova XSLT 1.0 engine, XSLT 2.0 engine, XQuery engine, and XML validating parser. Now developers can use the same engines found in Altova XMLSpy 2007 in 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 royalty-free XML processor to support schema-awareness in XSLT 2.0.

Script Debugger IDE is full-featured client and server ActiveX Scripting debugger. It provides developers with a robust set of tools for developing scripts and Web applications. With Script Debugger IDE, developers can set breakpoints on both client- and server-side scripts, step through code, add "watch" variables, investigate the call stack, and debug remote Web servers.

Sydock XML Forms allows you to work with XML Forms in the same way as with regular forms in popular text-processors, such as Microsoft Office.

* WYSIWYG XML Forms editor
* Automated XML Schema Validation

Xselerator is an IDE based editor for working with and debugging XSL/XSLT. A few of the many features included are: Automatic tag completion, color syntax highlighting, stepping and breakpoint debugging, an XPath query analyaer, and and edit/tree/browser view modes. A free 30 day trial is available at vbxml.com

Altova XMLSpy 2007 Enterprise Edition is the industry standard XML development environment for modeling, editing, transforming, and debugging XML-related technologies. It offers the world's leading XML editor, the original graphical schema designer, a code generator, file converters, debuggers, profilers, a revolutionary new WSDL designer, support for SOAP, XSLT, and XQuery, plus .NET and Eclipse integration. It's a vital tool for mastering XML.

Altova XMLSpy 2006 Home Edition is a totally FREE entry level XML development tool for designing and editing applications involving XML technologies. XMLSpy Home Edition is ideally suited for hobbyists, entry level developers, and students. XMLSpy 2006 Home Edition also supports seamless integration with Eclipse, allowing you to access the rich XML editing capabilities of XMLSpy 2006 directly within the Eclipse development environment.

Altova XMLSpy 2007 Professional Edition is the industry leading XML development environment, providing intuitive views and powerful XML utilities to model, edit, transform, and debug XML-related technologies quickly and easily. In addition to the world's most popular XML editor and original graphical XML Schema designer, it offers file converters, debuggers, support for XSLT, XQuery, Visual Studio .NET or Eclipse integration, and lots more.