Mp3tag is a powerful and yet easy-to-use tool to edit metadata (ID3, Vorbis Comments and APE) of common audio formats.

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

Mp3tag supports online freedb database lookups for selected files, allowing you to automatically gather proper tag information for select files or CDs.

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 compatible)
- Musepack (mpc)
- Ogg Vorbis (ogg)
- OptimFROG (ofr)
- OptimFROG DualStream (ofs)
- Speex (spx)
- True Audio (tta)
- Windows Media Audio (wma)
- WavPack (wv)

Main featues of Mp3tag :

- Write ID3v1.1-, ID3v2-, APEv2-Tags and Vorbis Comments to multiple files at once
- Automatically create playlists
- Recursive subfolders support
- Remove parts or the entire tag of multiple files
- Rename files based on the tag information
- Import tags from filenames
- Format tags and filenames
- Replace characters or words from tags and filenames
- Export tag information to user-defined formats (like html, rtf, csv, xml)
- Import tag information from an online database (also by text-search)
- Import tag information from a local database and much more...

Changes in Mp3tag 2.44h :

- NEW: hex-encoded HTML entities are now also translated in Tag Sources.
- CHG: trailing pipe symbol in fields filled by Tag Sources are now removed.
- FIX: moving files from one directory to another via drag'n'drop resulted in unresponsive program (since v2.44a).
- FIX: query strings containing equal or ampersand signs did not work with Amazon Tag Source.
- FIX: sorting filtered results displayed files that were not matched by the filter expression.
- FIX: undo remove or write tag operations sometimes refreshed wrong files in file view (since v2.44a).

Changes in Mp3tag 2.44 :

- NEW: added MusicBrainz Web Source.
- NEW: added Cover-only Amazon Web Sources.
- NEW: added F2 keyboard shortcut for editing in Tag Sources dialog.
- FIX: fixed UI glitches when editing long titles at Tag Sources dialog.
- NEW: Windows 7 now officially supported.
- CHG: changelog now English-only.
- FIX: fixed problem with entering certain polish characters where AltGr (right Alt) key was involved.
- CHG: improvements for keyboard navigation at extended tags dialog.
- FIX: action Case Conversion on Vorbis Comments field names did not take Date, Year, and Organization into account.
- CHG: added reporting of ID3v2 parsing errors as !BAD ID3v2 in tag field.
- FIX: pasting a non-existent directory to the directory switcher resulted in a phantom file.
- CHG: added Amazon API signing.
- CHG: added *.jpeg to supported file extensions for displaying cover art from directories.
- FIX: fixed wrong splitting of artist names containing slash characters for freedb web search.
- CHG: workaround for Firefox 3.5 dragged images always reported as BMP files.
- FIX: possible runtime error with Ogg Vorbis cover art.
- FIX: action 'Export cover to file' stopped working (since v2.43b).
- FIX: command-line parameter /fp on non-existent directory loads all tracks of upper directory.
- CHG: updated used TAK SDK to version 1.1.1.
- FIX: fields greater than 255 characters were not truncated in MP4 tags.
- NEW: support for cover art for Ogg Vorbis files.
- FIX: random runtime error when starting Mp3tag with multiple files from the Explorer context menu.
- CHG: increased number of possible user-defined tools.
- FIX: pressing 'Cancel' on write-protected files did not cancel to complete tag-writing process but only skipped the protected file.
- CHG: unlocalised strings now defaulting to English.
- FIX: minor fixes regarding file path canonicalization and validation.
- FIX: removing fields by writing empty values was not possible anymore (since 2.43a).
- NEW: support for Musepack SV8.
- CHG: updated internal value mapping for MediaMonkey rating field RATING MM to address changes in MM 3.1.
- FIX: occasional runtime error while parsing ill-formed UFID frames in ID3v2 tags.
- FIX: scripting functions used at 'Replace with' of action 'Replace with regular expressions' were not evaluated anymore (since v2.43).
- FIX: action 'Merge duplicate fields' merged all fields instead of only given one.
- CHG: action 'Merge duplicate fields' now also takes _ALL as field name to merge all fields.
- FIX: overflow with negative values as second parameter for $num scripting function.
- FIX: action 'Convert codepage' did not work in some cases.
- NEW: multiple-valued fields can now also be created via 'Format value' actions (values separated by \\).
- NEW: field %_cover_type% containing cover type of first embedded cover art.
- FIX: adding cover art via drag and drop was not possible anymore after modifying tag panel fields via 'Options > Tag Panel'.
- NEW: multiple-valued fields can now also be created via direct editing in the file view (values separated by \\).
- FIX: updated discogs.com web source.
- CHG: preventing accidentally hiding of columns in the file view.
- FIX: internal changes to prevent runtime errors on invalid file paths.
- NEW: option 'Correct aspect ratio' at right-click menu of cover art window.
- FIX: previous installation directory was not remembered by the installation program.