Mp3tag 3.31d – Free Music Tag Editor & Audio Metadata Tool

Edit and organize audio metadata easily with batch processing and support for all major formats.

2025-09-25

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Mp3tag is a powerful and easy-to-use universal Tag Editor that allows editing metadata of common audio formats, supporting ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis Comments, and APE Tags. If you look for a top free audio tag editor to batch edit music files, Mp3tag offers a user-friendly interface and powerful features to manage your entire music library efficiently.

It can rename files based on tag information, replace characters or words in tags and filenames, import /export tag information, create playlists, and more.

Mp3tag supports online database lookups from, e.g., Amazon, Discogs, or Freedb, allowing you to automatically gather proper tags and cover art for your music library.

Beyond its core capabilities, MP3tag offers a variety of additional functions, including batch export of embedded album covers, support for iTunes-specific tags (such as media type or TV Show settings), and the ability to combine multiple actions into groups that can be applied with a single click.

MP3tag supports the following audio formats:

Advanced Audio Coding (AAC)
Free Lossless Audio Codec (FLAC)
Monkey’s Audio (ape)
Mpeg Layer 3 (mp3)
MPEG-4 (mp4 / m4a / m4b / iTunes applicable)
Musepack (mpc)
Ogg Vorbis (Ogg)
OptimFROG (ofr)
OptimFROG DualStream (ofs)
Speex (spx)
Tom’s Audio Kompressor (tak)
True Audio (tta)
Windows Media Audio (WMA)
WavPack (WV)

Main features:

Batch-Tag Editing Write ID3v1.1, ID3v2.3, ID3v2.4, MP4, WMA, APEv2 Tags, and Vorbis Comments to numerous files instantly.
Support for cover art download allows you to add album covers to your files, enhancing the visual appeal of your library.
Import from Amazon, Discogs, FreeDB, and MusicBrainz. Save typing and import tags from online databases such as Amazon, Discogs, freedb, MusicBrainz, and others.
Replace characters or phrases. Replace strings in tags and filenames (with help for Regular Expressions).
Create Playlists automatically. Create and manage playlists automatically while editing.
Rename files from tags. Rename files based on the tag information and import tags from filenames.
Export to HTML, RTF, or CSV to generate detailed reports and lists of your collection using customizable templates.
Complete Unicode support ensures the user interface and tagging are fully compliant.

Changes in Mp3tag 3.31 :

CHG: removed limit to stop after exporting covers with 100 identical names via action Export Cover to File.
FIX: file paths were not updated in the File List after moving the folder, and the shell returned the drive name with a lowercase drive letter.
CHG: Preserve selected item when sorting Tag Sources results.
NEW: added function ‘Manage covers…’ to cover menu, which allows for adding, removing, replacing, adjusting, and reordering of embedded cover art in one or multiple files.
FIX: text in the edit control was not visible when editing directly in the file list, and the column width exceeded the visible area.
FIX: runtime error that occurred when attempting to delete a custom list value without a selection.
CHG: modernized communication between worker threads and UI.
CHG: symbolic links to folders are not dereferenced in open and save dialogs to more likely preserve user intent and follow platform conventions.
CHG: Ensure that files are not read-only before starting the writing process.
CHG: Preserve Tag Panel input and File List selection on errors when writing tags.
NEW: added advanced tagging option to use a single MP4 atom for multiple values.
CHG: Use copy during drag and drop if that is the only drop method supported by the drag source.
NEW: added support for removing MP3 tag types ID3v1, ID3v2, and APEv2 individually via the File List context menu Utils.
NEW: added support for removing unsupported fields from MP3 files via the File List context menu, Utils.
CHG: Let the app window open in the foreground when launched from third-party file managers, such as Total Commander, via the context menu.
Added a ‘Reset to Defaults’ button in the notification configuration options.
CHG: Help buttons for option dialogs all open the matching documentation topic.
FIX: dragging and dropping covers from the cover window onto themselves either removed or, when Ctrl was pressed, duplicated the cover.
CHG: use _TAG as the default field name to match all fields for actions, Merge duplicate fields, and Split field by separator.
FIX: Using _ALL as a field name in the ‘Split Field by Separator’ action did not apply the action to all tag fields.
FIX: undefined state in extended tags if the next or previous button was clicked while the file was being saved.
CHG: Use the favorite directory (and the Music folder as a fallback) as the initial directory when changing the directory from the app temp folder.
CHG: Use the app temp folder instead of the app folder on initial start, and if the startup directory cannot be accessed.
LNG: updated Brazilian Portuguese, Catalan, Corsican, Danish, Hungarian, Polish, Russian, Simplified Chinese, Slovak, and Spanish translations.