
Description: TkGate is an open-source digital logic circuit and schematic editor. It allows users to draw logic gate diagrams and simulate their operation. It has features for hierarchical design and is aimed primarily at education and prototyping.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Circuit JS is an easy-to-use, interactive circuit simulator and schematic capture tool for the web. It allows users to easily create and simulate circuits using standard components without installing any software.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API