Altova XMLSpy is the leading XML and JSON editor and development environment.
Convert one or many JSON files into XML files.
Powerful, quick and intelligent HTML and CSS editor with HTML5 and CSS3 support
wirh Allbuttons CSS Menu Builder you create CSS menus for your website.
Pure CSS Menu for FrontPage and Expression Web
find duplicate XML nodes, remove duplicate XML nodes from XML document.
Make RSS feeds and iTunes podcasts without knowing XML
Search one or more XML files for the same character string.