
Description: jRuby is an implementation of the Ruby programming language that runs on the Java virtual machine (JVM). It allows developers to use Ruby syntax and libraries while leveraging the performance, scalability, and enterprise features of Java.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Nashorn is a JavaScript engine integrated into the Java Virtual Machine (JVM). It allows developers to embed JavaScript code into Java applications and enable client-side scripting using JavaScript. It is lightweight, high-performance, supports the ECMAScript specification, and enables Java and JavaScript interoperability.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API