MP3 Tag Editor — Edit ID3 Tags, Online Free
Fix the title, artist, album and cover art of an MP3 in under a minute — right in your browser, nothing uploaded.
Drop an MP3 file here, or click to browse
MP3
Processed locally — your file never leaves this tab
This file has no tags yet — fill in what you know.
Cover art
Square JPG or PNG between 500 and 1400 px displays best in most players.
Processed locally — your file never leaves this tab
An MP3 carries two things: the music, and the card of information players show next to it — title, artist, album, year, cover art. When that card is wrong or missing, everything from your phone to the car stereo falls back to Unknown Artist or Track 01. Drop a file here, fix the fields and save: the audio is copied over byte for byte, untouched, and never leaves your device.
Tags people actually need to fix
- Clean up downloads that show "Unknown Artist" or no cover in your music player.
- Give a podcast episode or demo track a proper title, cover and credits before publishing.
- Strip leftover device and location metadata from a recording before you share it.
How to use the MP3 Tag Editor
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Drop your MP3
Drop the file in or click to browse. The current tags and cover art are read on your device and shown in the form.
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Edit the fields
Type the correct title, artist, album, year and track number, and add or replace the cover art with a JPG or PNG.
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Save the MP3
Hit Save MP3 to download the tagged file. The audio is copied unchanged — only the information card around it is rewritten.
The label changes, the audio does not
The tag editor rewrites the ID3 block and copies the MPEG frames byte for byte. The sound is bit-identical. The saved file can even be slightly smaller, because the old tag block and its padding are not carried over.
It writes ID3v2.3 with UTF-16 text, which is the version car stereos read most reliably, and which fixes titles that were saved in a single-byte encoding and show up as garbage.
What you can set, and what you cannot
One MP3 at a time. Common fields only:
- Title, artist, album, and the other everyday fields, plus cover art.
- Not FLAC, M4A, or WAV. Those tag formats are not written here.
- Not podcast chapters or unusual custom frames. Saving rewrites the tag block, and those frames are not carried over.
Why the car still says Track 01
Many head units ignore tags and fall back to the file name, and most cache the old information until you re-import the USB stick or rescan. Rename the file to something like 01 - Song Title.mp3, then rescan.
Cutting, fading, or changing speed is the MP3 editor, which decodes and re-encodes. This page never touches the sound. Use that one to edit the music. Use this one to label it.
MP3 Tag Editor FAQ
Is my MP3 uploaded to a server?
No. The file is opened with the browser’s own FileReader API and rewritten right in your tab. You can load this page, switch off Wi-Fi, and the editor still works. There is no upload step at all.
Will editing the tags change the audio quality?
No. Tag data lives in a separate block at the front of the file, and the MPEG audio frames are copied byte for byte, so the sound is bit-identical. The saved file can even be slightly smaller, because the old tag block and its padding are not carried over.
How is this different from the MP3 editor?
The MP3 editor cuts, trims and joins the audio itself, which means decoding and re-encoding the sound. This page never touches the sound — it rewrites the information card around it. Use that one to edit music, this one to label it.
What can’t it do?
It edits MP3 files only — FLAC, M4A and WAV use different tag formats this page does not write yet. It works on one file at a time rather than a whole album in batch. And saving rewrites the whole tag block, so podcast chapters or unusual custom fields stored in the original tag are not carried over — the common fields are.
Why does my car stereo still show "Track 01"?
Many head units ignore tags and fall back to the file name, and most cache the old information until you re-import the USB stick or rescan. Save here (the file is written as ID3v2.3, the version car stereos read most reliably), rename the file to something like "01 - Song Title.mp3", then rescan.
My Chinese, Japanese, Korean or Arabic tags show as garbage. Can this fix it?
Yes — that usually means the old tag was saved in a single-byte encoding instead of Unicode. Retype the correct text here and save: the file is rewritten as ID3v2.3 with UTF-16 text, which modern players display correctly, including Chinese, Japanese, Korean, Arabic, Cyrillic and Hindi titles.
Does it work on my phone?
Yes — recent Chrome, Safari, Firefox and Edge, desktop or mobile. Saving hands the file to the browser like any download; on iPhone, Safari saves it to the Files app. Everything runs locally, so it also works on a slow connection once the page is open.
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