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Kid3 is an open-source cross-platform audio tag editor for many audio file formats, it can

  • Edit ID3v1.1 tags
  • Edit all ID3v2.3 and ID3v2.4 frames
  • Convert between ID3v1.1, ID3v2.3 and ID3v2.4 tags
  • Edit tags in MP3, Ogg/Vorbis, FLAC, MPC, MP4/AAC, MP2, Opus, Speex, TrueAudio, WavPack, WMA, WAV, AIFF files and tracker modules (MOD, S3M, IT, XM)
  • Edit tags of multiple files, e.g. the artist, album, year and genre of all files of an album typically have the same values and can be set together.
  • Generate tags from filenames
  • Generate tags from the contents of tag fields
  • Generate filenames from tags
  • Rename and create directories from tags
  • Generate playlist files
  • Automatically convert upper and lower case and replace strings
  • Import from,, MusicBrainz, Discogs, Amazon and other sources of album data
  • Export tags as CSV, HTML, playlists, Kover XML and in other formats
  • Edit synchronized lyrics and event timing codes, import and export LRC files

Kid3 is developed in his spare time by Urs Fleisch, a Zurich based professional developer, who also uses Qt in his daily work.

Urs started working with Qt in 2002, the first version of Kid3 was released 2003 as a KDE application for MP3 files (hence the name starting with a K and ending with ID3).

Kid3 has grown for more than 12 years now, it has experienced Qt 2, 3, 4, and 5, today it supports a lot of audio formats and runs on all major desktop operating systems.

Kid3 is Urs’ largest spare time project. He also supports other open source projects with bug reports and patches, and has contributed, among other things, to the Linux kernel, Android, Emacs, Matplotlib, KDE, LXDE, TagLib, Debian and Ubuntu. Another notable larger contribution was improved Python code completion for Emacs (python-mode.el).

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