Mp3tag is a metadata tag editor that supports many popular audio file formats. It is freeware for Microsoft Windows, while it costs USD $24.99 for Apple macOS in the Mac App Store.

Features

It includes support for the following audio formats:

Example

The following is an example of an M3U playlist file for "Jar of Flies" album by "Alice in Chains" that was created by Mp3tag with the following custom option settings: Alice in Chains_Jar of Flies_01_Rotten Apple.mp3 Alice in Chains_Jar of Flies_02_Nutshell.mp3 Alice in Chains_Jar of Flies_03_I Stay Away.mp3 Alice in Chains_Jar of Flies_04_No Excuses.mp3 Alice in Chains_Jar of Flies_05_Whale And Wasp.mp3 Alice in Chains_Jar of Flies_06_Don't Follow.mp3 Alice in Chains_Jar of Flies_07_Swing On This.mp3