
Description: CircuitVerse.org is an open-source online platform for creating and simulating digital logic circuits. It allows designers to build and test circuits without any hardware, using a simple drag-and-drop interface.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Hradla is an open-source alternative to Sketch and Adobe XD for interface design and prototyping. It provides a clean and intuitive interface for designing mobile and web mockups with support for layers, symbols, colors, typography and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API