
Description: 4k YouTube to MP3 is a free web-based tool that allows you to convert and download YouTube videos as MP3 audio files. It supports extracting audio from YouTube videos up to 4K resolution.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Allavsoft is a video and music downloading software that allows users to download videos and audio files from popular websites like YouTube, Facebook, Vimeo and more than 1000 sites. It supports downloading in various formats and resolutions.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API