Mp3tag

Mp3tag is a powerful and easy-to-use tool to edit metadata of audio files. It supports batch tag-editing of ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis Comments and APE Tags for multiple files at once.

* Supported audio formats are MP3, MP4, M4A, M4V, FLAC, WAV, WMA, Ogg Vorbis, Opus, Musepack, ALAC and more.

* Online database lookups via Discogs, MusicBrainz or freedb, allowing you to automatically gather proper tags and download cover art for your music library.

* Rename files based on the tag information, replace characters or words in tags and filenames, import/export tag information, create playlists and more.