
Description: CircuitJS1 Desktop Mod is an open source circuit simulator for electronics. It allows users to design and test electronic circuits virtually. The desktop mod provides extra features like exporting circuit designs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: LibrePCB is an open source electronics design automation application for printed circuit boards. It allows schematic capture and PCB layout/routing with an intuitive user interface.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API