mp3 Tagging Tools

TuneUp Windows/Mac Fix your entire music library. Automagically™. TuneUp is the fastest and easiest way to fix your digital music. Fix mislabeled songs, add missing cover art and remove duplicate tracks – in just a few clicks.
MediaMonkey Windows Is your music library a mess? Get MediaMonkey and get organized.
MusicBrainz Picard Windows/Mac/Linux Picard is a cross-platform music tagger written in Python.
ID3-TagIT Windows From ID3-TagIT: ID3-TagIT is a program for editing, adding, or deleting ID3 TAGs in MP3 files. Single file and batch editing are both supported. Edit one, ten or all your MP3 files at once.
Mp3Tag Windows The universal tag editor and more…Download free tag editor to change or add information to mp3 files.
Foobar2000 Windows foobar2000 is an advanced freeware audio player for the Windows platform.