This Mp3tag review looks at version 3.37 feature by feature: batch editing, renaming, online lookups and exports, plus what the program does not do. The facts come from the developer's pages and documentation.
This is an independent guide, not the developer's site. Download buttons lead to the official Mp3tag pages. Facts were read on mp3tag.de on 14 November 2026.
Mp3tag earns 8.6 out of 10 in this review. It edits tags across many files at once in 20 audio formats, renames files from tags and imports album data and covers from Discogs and MusicBrainz, and the Windows version asks for no payment. The limits are an interface built for people who like format strings, lookups that search by release rather than by sound, and a Mac edition that is paid.
Verdict
For anyone on Windows with a messy music folder, this is the first tool to install. It is small, updated several times a year and covers nearly every tag format in use. Expect to learn a little syntax for renaming, and pair it with a fingerprinting tool if you have many files with no usable tags at all.
- Batch edits across hundreds of files
- Rename from tags and tags from filenames
- Discogs and MusicBrainz lookups with covers
- No price on Windows, paid Mac edition
- No matching by audio fingerprint
Windows installer, about 6 MB, no key needed.
What this review covers
This Mp3tag review is about version 3.37, released on 6 November 2026. It covers the features the developer lists on the home page and in the documentation, and it states plainly where something is missing. There are no lab benchmarks here; the facts come from the developer's own pages.
The program does one category of work: changing the metadata inside audio files. It does not play music, convert between formats or manage a streaming account. Judged on that one job, it is unusually complete.
Batch editing and the Tag Panel
You open a folder, select any number of files and edit fields in the Tag Panel. A value typed there is written to every selected file, and fields that differ across the selection are shown as such so you do not overwrite them by accident. It writes ID3v1.1, ID3v2.3 and ID3v2.4 for MP3, MP4 atoms for M4A and similar, WMA tags, APEv2 tags and Vorbis Comments for FLAC, Ogg and Opus.
Version 3.37 extended the Tag Panel with headings, information fields and format string fields, so the panel can be arranged like a form. Version 3.36 made custom field values independent of the panel. Version 3.34 added interface scaling up to 200%, which helps on high resolution screens.
Renaming and converting
The Convert menu holds the converters that make the program popular. Tag - Filename builds filenames from tags with a format string such as track number, artist and title; a slash in the string creates folders. Filename - Tag works the other way and reads fields out of names that already contain the information. Holding Shift while running a converter shows a preview first.
Version 3.37 added direct text input and a live preview when converting text to tags. Replace actions with regular expressions and action groups that run several steps with one click complete this side of the program.
Online lookups and cover art
The Tag Sources menu queries Discogs and MusicBrainz, shows matching releases, and writes album, track and cover data into the selected files. A separate covers submenu fetches artwork only, and Discogs can be queried directly by release ID. Discogs needs a one time authorization step described in the documentation.
Lookups work per album. You select the files of one release and search; the program does not identify unknown songs by listening to them. For the detailed procedure, see the Discogs and MusicBrainz guide.
Pros and cons
Pros
- No price asked for the Windows version
- Supports 20 audio formats and all common tag types
- Rename files and create folders from tags
- Discogs and MusicBrainz lookups with cover art
- Exports collection lists to HTML, RTF and CSV
- Frequent releases, four feature updates in 2026 so far
- Small installer, runs on Windows 7 through 11 and arm64
Cons
- Format strings take some learning
- No acoustic fingerprint lookup for untagged files
- No audio conversion or playback features
- Mac edition is a separate paid app
- Licence and refund terms are not spelled out on the pages read
Price and value
On Windows the download page shows no price and asks for donations, which makes the value question simple. On the Mac the edition is a paid app with a short trial. The cost page separates the two cases, and if you want to compare first, the alternatives list covers other free and paid tag editors. When you are ready, the download page has both installers.
Install the current version
Version 3.37 for Windows from the developer's site. Mac users get the separate edition there too.
Frequently asked questions
Is Mp3tag good?
It is one of the most complete batch tag editors for Windows: 20 audio formats, all common tag types, renaming from tags and online lookups. This review scores it 8.6 out of 10, with the learning curve of format strings as the main drawback.
Is Mp3tag safe?
The installer from the developer's own site is the official build, updated regularly since 1999. Avoid repackaged copies on download portals, which may bundle other software.
Can it identify songs with no tags?
Not by sound. Its lookups search Discogs and MusicBrainz by album or release. For files with no usable names or tags, an acoustic fingerprint tool works better first.
Does it convert audio formats?
No. It changes metadata only and leaves the audio stream as it is. Use a separate converter if you need to change format or bitrate.
Can it embed album art?
Yes. It downloads covers from online sources or takes an image file and embeds it into the selected files. It can also export embedded covers from many files at once.