Meteor - Meteor is a set of new technologies for building top-quality web apps in a fraction of the time.
XML Copy Editor - XML Copy Editor is a fast, free, validating XML editor.
Horizon - Horizon is a realtime, open-source backend for JavaScript apps.
Oxygen XML Editor - Oxygen XML Editor provides a comprehensive suite of XML authoring and development tools.
WoofJS - Easy-to-learn JS graphic framework
Liquid Studio - XML Tools Provider: XML Studio - Graphical XML Schema Editor.