XML Schema Quality Checker is a program which takes as input an XML Schema written in the W3C XML schema language and diagnoses improper uses of the schema language. Where the appropriate action to correct the schema is not obvious, the diagnostic message may include a suggestion about how to make the fix. For Schemas which are composed of numerous schema documents connected via <include> <import> or <redefine> element information items, a full schema-wide checking is performed. The tool can also be run in batch mode to quality check multiple XML schemas in a single run.

The IBM XML Registry/Repository (XRR) is a data management system that manages and provides services for XML artifacts including schemes (DTD, XSD), stylesheets (XSL) and instance documents (WSDL). User can use XRR to obtain an XML artifact automatically, search or browse for an XML artifact, deposit an XML artifact with or without related data, and register an XML artifact without deposit.

XSLbyDemo is a technology for generating XSLT rules on the basis of editing operations conducted under on the WYSIWYG view of an HTML editor. XSLbyDemo is available for full-fledged HTML editors, namely, IBM WebSphere Studio Page Designer (v3.5 or greater), and IBM WebSphere Homepage Builder (v.6.0.3 or greater).

Complete with breakpoints and step-into/over this is a visual tool for XSL developers. Currently in beta, this tool is easy to use and small.

This tool is now a mature 2 years old. It was the first opensource Visual XSL development environment.