Seven fields cover what music software and devices actually read: title, artist, album, year, track number, genre and comment. These map to the ID3v2 frames TIT2, TPE1, TALB, TYER, TRCK, TCON and COMM respectively.
MP3 Tag Editor for Title, Artist and Album
Edit the title, artist, album and other ID3 tags on an MP3 and save it back. The file is read on your device and the audio is never re-encoded.
Choose an MP3, edit the fields, and save it back out. The tag is rewritten and the audio stream is copied through untouched, so nothing about the sound changes.
MP3 only · stays on your device · audio is never re-encoded
01
Which Tags You Can Edit
Leaving a field empty omits the frame entirely rather than writing a blank one. That matters because an empty frame and a missing frame behave differently: some players show an empty string where they would otherwise fall back to the filename.
Album art, lyrics, composer, disc number and the dozens of other defined frames are not edited here. Reading them is easy; writing them correctly involves image containers and multi-frame layouts that a focused tool is better off leaving to a full tag manager.
02
ID3 Versions and Why It Writes 2.3
The tool reads both ID3v2.3 and ID3v2.4, which between them cover effectively every MP3 in circulation. It always writes 2.3.
That is a compatibility choice, not laziness. ID3v2.4 is the newer specification and technically nicer — it allows UTF-8 text and synchsafe frame sizes — but support is patchy outside modern software. Windows Explorer, car head units, older hardware players and a surprising amount of DJ software read 2.3 reliably and 2.4 inconsistently. Writing 2.3 means the tags show up everywhere.
Within 2.3, text is written as UTF-16 with a byte order mark. That is the only encoding 2.3 offers that can represent non-Latin characters at all: the alternative, ISO-8859-1, turns Japanese, Chinese, Korean, Cyrillic and Arabic titles into question marks.
03
The Audio Is Not Touched
An MP3 file is a tag block followed by a stream of audio frames. Editing tags means replacing the block at the front and copying the frames behind it through byte for byte. That is what this tool does, so there is no re-encoding and no generational quality loss, however many times you edit the same file.
This is worth stating because some tag editors decode and re-encode, which costs quality every pass. If you have ever noticed a file sounding slightly worse after a metadata fix, that is why.
Rewriting also replaces the previous tag rather than appending a second one. Files that have been through several tools sometimes accumulate stacked tags, which is why a title you thought you deleted can reappear in a different player.
04
Why Tags Matter
Music libraries organise by tag, not by filename. A folder of correctly named files still shows up as Unknown Artist in a media player if the frames are empty, which is the usual reason a freshly downloaded or exported album looks like a mess.
People fixing a library after a migration are the most common users: exports from one application often lose or mangle fields the next one needs. Producers tag bounces before sending them to a client, so the file identifies itself when it lands in someone else's library. DJs rely on artist and title being correct because their software builds the browser from tags.
Anyone distributing audio also needs tags filled in. A podcast episode or a self-released track shows up with whatever is in the frames, and a blank artist field is the difference between looking published and looking unfinished.
05
Nothing Leaves Your Device
The file is read with the browser's own file API, parsed in memory and written back out as a download. No part of it is sent to a server, which is why there is no upload progress and no credit cost.
That matters more for tags than it might seem. Unreleased tracks, client bounces and promo copies all carry identifying metadata, and uploading them to a web service to change a title means handing over the audio as well.
The practical limit is that only MP3 is supported. FLAC uses Vorbis comments, MP4 and M4A use iTunes-style atoms, and Ogg uses its own scheme. They are different containers rather than variations on ID3, so a tool that claimed to handle all of them would be four tools.
06
MP3 Tag Editor Questions
Is my file uploaded?
No. It is read on your device, edited in memory and handed back as a download. Nothing is sent to a server, so there is no upload bar and no credit cost.
Does editing tags affect the audio quality?
No. The audio frames are copied through byte for byte and never decoded or re-encoded. You can edit the same file repeatedly without any loss.
Why does it write ID3v2.3 rather than 2.4?
Compatibility. 2.4 is the newer spec but support outside modern software is inconsistent, while 2.3 is read reliably by Windows, car players and DJ software.
Will Japanese or Cyrillic titles survive?
Yes. Text is written as UTF-16, which is the only encoding in ID3v2.3 that can represent non-Latin scripts. ISO-8859-1 would turn them into question marks.
Can I edit album art?
Not here. Embedded art lives in an APIC frame with its own image container, which is outside what this tool covers. Use a full tag manager for artwork.
Does it work with FLAC, M4A or WAV?
No, MP3 only. Those formats use entirely different tag containers — Vorbis comments, iTunes atoms and RIFF chunks — rather than variations on ID3.
Why did a field I cleared come back?
If it reappears in another player, the file probably had stacked tags from an earlier tool. This editor replaces the tag rather than appending, so saving here once should settle it.
What is the comment field actually for?
It is a free-text frame most software shows somewhere in the file's details. Studios use it for session notes, labels for catalogue numbers, and DJs for cue information. Unlike the other fields it carries a language code and a description alongside the text, which is why some editors mangle it.
Should I fill in the year as a full date?
Write a four-digit year. The 2.3 frame this maps to is defined as exactly four characters, so a full date gets truncated or rejected depending on the player. If you need a precise release date, a full tag manager writing 2.4 is the right tool.