EditiX!

Notepad++ is a free source code editor and Notepad replacement that supports several languages.

SynWrite is a free source code editor and notepad replacement for Microsoft Windows Operating Systems.

XML Copy Editor is a fast, free, validating XML editor.

Altova XMLSpy is the industry's best-selling XML editor and development environment for modeling, editing, transforming, and debugging XML-related technologies. It offers the world’s leading graphical schema designer, a code generator, file converters, debuggers, profilers, full database integration, support for XSLT, XPath, XQuery, WSDL, SOAP, XBRL, and Office Open XML (OOXML) documents, plus Visual Studio and Eclipse plug-ins, and more.

FoldingText is the markdown text editor with productivity features. Unlike other editors, FoldingText does outlining, todo lists, and more.

<oXygen/> XML Editor is a cross platform XML Editor providing tools for XML authoring, XML conversion, XSL, XSLT, XQuery, XML Schema, DTD, Relax NG and Schematron development, SOAP and WSDL.

TreeLine just stores almost any kind of information. A tree structure makes it easy to keep things organized. And each node in the tree can contain several fields, forming a mini-database. The output format for each node can be defined, and the output can be shown on the screen, printed, or exported to html. TreeLine can also act as a basic editor for any kind of XML file.

XML Notepad provides a simple intuitive user interface for browsing and editing XML documents.

Ynote Classic is an easy to use fast and advanced text editor with a tabbed interface and multiview. It has intelligent Syntax Highlighting, Code Folding , Auto Indent and autocompletion. It can highlight any language you like using Regular Expressions. It can deal with large files (100k lines and more) quickly by using the File ->Binding->Open Binding File mode which can open large files very quickly.

Notepad-like VB.Net multi-tab source code editor for Windows XP, Vista and Windows 7 that supports ASM, ASP.Net, Boo, C#, C++, CSS, HTML, INI, Java, JavaScript, Lua, Perl, PHP, Python, Ruby, SQL, VB.Net, XML and plain text files.

XMLPad is a XML editor, XML-Schema editor, validator and a lot more:-- Full XML Schema support.-- Project system with CVS support.-- XML Schema editor with color syntax highlighting, line numbers, element range navigation, and context-dependent source assistant wizard.-- Preview and printing XML Schema in graphical diagram window. The diagram is synchronized with XML Schema editor.-- XML Schema documentation generation (ws3p.xsl) with diagram images.-- XML Schema validation and XML files validation against the underlying XML Schemas.-- Generation of XML samples from XML schema or a sample of XML Schema from XML file. Converting XSD to DTD and DTD to XSD.-- Regular expression builder and enumeration builder.-- Schema-aware XSLT editor and debugger with Active script support.-- Support for JAXB and Castor binding.-- HTML & DBF import. »

Angel Writer is a free text editor allowing you to create impressive documents that contain formatted text, graphics and tables. You can learn how to work with Angel Writer in five minutes since it is very similar to Microsoft Office Word.

PHP Studio is an easy-to-use and comprehensive development solution for PHP based websites and applications. This advanced PHP editor has many features that will streamline complete development process of editing, debugging and deploying of PHP applications for both beginner and professional web engineers.

The simple yet actually fast source-level XML Editor XML Marker uses a combination of syntax-highlighting editor, tree view, and table views to help you get better insights of your XML code.

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).