XMLable - XMLable is an online toolbox designed for working with XML, offering tools such as a formatter, validator, comparator, generator, XPath tester, XSD generator, and XSL transformation.

CaptainCasa Enterprise Client - CaptainCasa Enterprise Client

JSONFormatter.org - Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON

Wt - Wt (pronounced as witty) is a C++ library for developing web applications.

FreeFormatter - Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.

jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.