Downloading ID3TagMan 0.3 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. This free Mac app was originally created by Thomas Jinwoo Min. ID3TagMan for Mac relates to Audio & Video Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
ID3TagMan provides a neat way to convert broken encoding tag information for mp3 files.
Sometimes mp3 files have broken encoding information in Korean/Japanese/Chinese. The solution you can use is to change the encoding to UTF-8 in ID3 tag properties.
You may want to check out more software for Mac, such as VCode, Aiseesoft WMV Converter for Mac or AkBrowser, which might be similar to ID3TagMan.