
Description: Thimble by Mozilla is a free online code editor that makes it easy to create and publish web pages while learning HTML, CSS & JavaScript. It has features like live previews, starter templates and it works right in the browser.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Slingcode is a low-code platform that allows anyone to build custom web and mobile apps without coding. It has a visual drag-and-drop interface to design UI and workflows. Key features include data integration, process automation, flexible deployment, and collaboration.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API