Kid3 is an application to edit the ID3v1 and ID3v2 tags in MP3 files in an efficient way. These tags can be edited by most MP3 players, but not in a very comfortable and efficient way. Moreover the tags in Ogg/Vorbis, Opus, DSF, FLAC, MPC, APE, MP4/AAC, MP2, Speex, TrueAudio, WavPack, WMA, WAV, AIFF files and tracker modules (MOD, S3M, IT, XM) are supported too.

Kid3 does not grab nor encode MP3 files, but it is targeted to edit the ID3 tags of all files of an album in an efficient way, i.e. with as few mouse clicks and key strokes as possible. Where most other programs can edit either ID3v1 or ID3v2 tags, Kid3 has full control over both versions, can convert tags between the two formats and has access to all ID3v2 tags. Tags of multiple files can be set to the same value, e.g. the artist, album, year and genre of all files of an album typically have the same values and can be set together. If the information for the tags is contained in the file name, the tags can be automatically set from the file name. It is also possible to set the file name according to the tags found in the file in arbitrary formats.

The editing task is further supported by automatic replacement of characters or substrings, for instance to remove illegal characters from filenames. Automatic control of upper and lower case characters makes it easy to use a consistent naming scheme in all tags.

The tag information for full albums can be taken from gnudb.org, TrackType.org, MusicBrainz, Discogs, Amazon or other sources of track lists. The import format is freely configurable by regular expressions.

Please report any problems or feature requests to the author.