This tag editor is designed to be easy and intuitive to use. Just add the files you want to edit to the list, enter the new information, and then click the save button.

This app features includes:
Add, edit or remove tag metadata, including genre, title, artist, album, year, track number, cover image, lyrics, and more.
Edit mp3 music file metadata in the browser, No file uploading to the server.
Supports multiple file editing, Easy and intuitive to use.
Supports multiple encoding for reading the tags.
Save the edited MP3 files to Google Drive.

You can select a MP3 file from local computer, Google Drive, Dropbox, and Box. This app is absolutely free for those who want to edit a MP3 tag metadata.