eXistdb

High-performance native XML database engine and all-in-one solution for application building.

Free Open Source Mac OS X Windows Linux

Liquid Studio

XML Tools Provider: XML Studio - Graphical XML Schema Editor. XML Data Binder - Generate C++, C#, Java, VB .Net, Visual Basic classes from any XML Schema (XSD, XDR, DTD).

Commercial Windows

XMLmind XML Editor

XMLmind XML Editor allows to author large, complex, modular, XML documents. It makes it easy mastering XML vocabularies such as DocBook or DITA.

Commercial Mac OS X Windows Linux

Kernow

A GUI and high-level API for the Saxon XSLT, XQuery and XML Schema processor. Kernow is an open source tool designed to make it faster and easier to repeatedly run...

Commercial Mac OS X Windows Linux Web

Altova DiffDog

Altova DiffDog is the unique diff / merge utility for files, directories, and database schemas and tables.

Commercial Windows

BeyondXML

BeyondXML is a revolutionary innovative XML editor that offers a host of new and highly useful features currently unavailable in other XML editors, making it the most...

Commercial Windows