XML editors

source code editor developed by Microsoft

text editor

free and open-source text and source code editor

document processor for the production and manipulation of large structured documents

software for modifying XML documents

XMLSpy is a proprietary XML editor and integrated development environment (IDE) developed by Altova. XMLSpy allows developers to create XML-based and Web services applications using technologies such as XML, JSON, XBRL, XML Schema, XSLT, XPath, XQuery, WSDL and SOAP.