XMLUnit
Unit testing of XML for Java and .NET
IETester
Browser for checking compatibility with Internet Explorer 5.5 to 11
IE NetRenderer
Online rendering check for Internet Explorer 5.5 to 11
File-AID
Mainframe file and data management, including test data management
BackstopJS
Visual regression testing of web apps by screenshot comparison
Chromatic
Visual, interaction and accessibility UI testing by the Storybook team