Altova XMLSpy - The XMLSpy XML Editor is a powerful tool for editing XML and related technologies. It is the only XML Editor with patented SmartFix validation, enterprise-grade editors, converters, debuggers, and code generators.
footnote - A beautiful, fast, and simple note taking app in the style of elementary
Oxygen XML Editor - Oxygen XML Editor provides a comprehensive suite of XML authoring and development tools.
MUIbase - MUIbase is a relational, programmable database with graphical user interface for Windows, Mac...
Liquid Studio - XML Tools Provider: XML Studio - Graphical XML Schema Editor.
Exstora - Built-in quick note: save ideas, contacts, interesting facts