Kid3 Tag Editor is one of the best possible options if you want to tag the most popular music file formats the easy way.
The main features of Kid3 Tag Editor are converting between ID3v1.1, ID3v2.3, and ID3v2.4 tags; editing the aforementioned tag types; editing tags of multiple files (as the tracks of an album have the same artists, year, and album and genre); generating filenames from tags and the other way around; generating tags from contents of tag fields; generating playlist files and automatically converting upper and lower cases.
The application can import information from various album data sources, such as MusicBrainz, Amazon, Discogs, TrackType, and many others.
Kid3 Tag Editor works fast and its interface is very responsive to user actions; with a reasonable amount of system resources and various program settings, you will be able to edit the tags of your music files in no time.
Changes in Kid3 3.1.2
+ Allow user to change the file permissions of read-only files.
+ Updated Simplified Chinese translation.
+ Reduce number of open file descriptors with TagLib >= 1.8.
- See full list of changes here
Kid3 Tag Editor provides support for both ID3v1 and ID3v2 tags, and it handles the following audio formats: MP3, OGG, MPC, FLAC, MP2, MP4, Speex, WavPack, TrueAudio, WAV, WMA, and AIFF.