
Description: The YouTube Audio Library is a free library of audio tracks and sound effects that YouTube creators can use in their videos without copyright concerns. It contains over 15,000 tracks across a variety of genres like pop, jazz, classical, electronic, hip hop, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ccMixter is a website that hosts remixable music and sounds that people can use to create new mixes and compositions. It has a large library of samples, loops, acapellas, and more that are free to use under Creative Commons licenses.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API