
Description: Mp3tag is a free metadata editor for mp3 files allowing you to easily edit ID3 tag information like title, artist, album, year, track number, etc. It supports batch editing multiple files at once.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: The Tagger is a free, open-source data labeling tool for annotating images, audio, and text. It allows users to quickly create projects, upload data sets, create labeling schemas, assign tasks to team members, and monitor labeling progress.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API