HEATKEYS

A web-based XML validator. Can be used for free. Validates XML files, prompts the user for referenced files (e. g., XSD), shows good error messages.

HTML XHTML CSS JavaScript XML XSL ASP SQL ADO VBScript Tutorials References Examples

Code Beautify hepls to edit, minify,beautify,export web code like CSS,HTML,JSON,XML,RSS,XMLtoJSON,JSONtoXML,CSVtoJSON,CSVtoXML,XMLtoCSV,JSONtoCSV convter, viewer,beautify and minifier,editor and Create robots.txt,sitemap

Online tools for developers, including formatters (JSON, XML, HTML, SQL, etc.), minifiers (JavaScript, CSS), validators, compactors and many more!

Free cross-platform web-based Online XML Editor, runs on Linux, Windows, Mac, FireFox, Chrome, IE. Edit XML schema or document. No user registration required.

For Focused .NET/XML and Web Services Training Visit the XML for ASP.NET Developers Website: http://www.xmlforasp.net

Collection of utilities frequently needed in web development, such as testing URL encode/decode, HTML encode/decode, generating runtime classes from a XSD or a JSON string and many more

The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards.

W3C

Web-tool for decode / encode messages, encrypt / decrypt messages, sign, validate, build XML metadata, test idp, test sp, review saml examples and learn SAML.

Altova XMLSpy XML editor, plus other leading XML, data management, UML, and Web services software tools for application, web site, and database development, data conversion, and more.

The web, animation and midlets developers resource.