
Description: Lichess is a free and open-source chess server for playing chess online. It allows users to play anonymously against other players or friends in real-time or through correspondence games. Key features include analysis tools, puzzles, lessons, and tournaments.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OpeningTree is open-source mind mapping and brainstorming software. It allows users to visually organize ideas, tasks, and projects into interactive maps. Key features include real-time collaboration, markdown support, and easy sharing and exporting.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API