Kid3!

Mp3tag is a powerful and yet easy-to-use tool to edit metadata of common audio formats where it supports ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis Comments and APE Tags.

Picard is the next generation MusicBrainz tagging application. This new tagging concept is album oriented, as opposed to track/file oriented like the ClassicTagger was. Picard is written in Python, which is a cross-platform language, and makes use of cross-platform libraries - this allows the same code to run both on Windows, Linux and Mac OS X.

MediaMonkey is a music player and a music library manager with support for 50,000+ files and many features for organizing, tagging, converting and burning your music. It also has advanced podcasting and syncing features. MediaMonkey syncs with iPhones, iPods, and most other MP3 Devices. MediaMonkey is an All-in-One music manager solution with many plugins available.

TagScanner is a multifunction program for organizing and managing your music collection. It can edit tags of mostly state-of-the-art audio formats, rename files based on the tag information, generate tag information from filenames, and perform any transformations of the text from tags and filenames.

EasyTAG is a utility for viewing and editing tags.

Puddletag is an audio tag editor (primarily created for) GNU/Linux similar to Mp3tag. Unlike most taggers, it uses a spreadsheet-like layout so that all the tags you want to edit by hand are visible and easily editable.

Tagger is application that auto tags audio files. It also supports batch tag editing.

Finetune is the easiest way to fix your music. Fix song information, cover art, lyrics and remove duplicate and missing tracks from your library. Unlike other tagging tools, Finetune works mostly in an automatic way. You just review the proposed changes, maybe tweak them and apply. Finetune listens to your music and calculates its acoustic fingerprint, then it searches for matches in the AcoustID database.

Metadatics is a powerful and advanced audio metadata editor. It supports batch editing of most common audio file types including MP3, M4A, AIFF, WAV, FLAC, APE, OGG, WMA, and more. Lookup metadata from online sources, rename files based on metadata, or manipulate metadata using one of the many built in functions. Metadatics provides all you need to edit metadata with ease and flexibility.

Meta is a complete tool that helps you manage your digital music collection. It allows for easily editing audio metadata (tags) such as a song's artist, title, album, artwork, etc…

Here you can get an overview of the features of Magic MP3 Tagger.

Discover the newest way of editing tags and renaming music files through the handy spreadsheet. Tag Editor allows to download, edit, clean up multiple tags and rename files by batch in one spreadsheet with full control over changes. Tidy your entire audio collection by both auto and manual methods quickly and easily! Tag Editor supports ID3 tags for MP3, WAV, AIFF, FLAC, and MP4 tags for MP4 and M4A (Apple lossless) files.