
Description: JSter is a free and open source JavaScript playground that allows developers to easily test JavaScript code snippets in the browser. It has features like syntax highlighting, auto-completion, error reporting, and more to provide a full-featured coding environment.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: LinksGage is a link building and SEO analytics tool that provides insights into your website's backlinks and helps you identify new link building opportunities. It tracks your most important ranking factors and allows you to monitor your link building efforts over time.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API