
Description: Karaoke Mugen is an open-source karaoke player for Windows and macOS that can play popular karaoke file types like MP3+G, CD+G, and ZIP. It has a customizable interface with adjustable themes and display options.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: UltraStar Deluxe is a free and open source karaoke singing game. It allows users to sing along to music tracks and scores them based on accuracy. Supports many customizable features, has an active community, and works on Windows/macOS/Linux.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API