How to Edit MP3 Tags in Your Browser
This page walks through the process we use on editmp3tags.com to update song information—title, artist, album, year, track number, genre, comments, and cover art—without installing software and without uploading your audio anywhere.
What an “MP3 tag” actually is
Every MP3 can carry a tiny block of text and images called an ID3 tag. It’s what your player reads to show the song title and artwork. There are two main flavors:
- ID3v2 — the modern, flexible tag at the beginning of the file. This is what most apps and phones use today.
- ID3v1 — an old, 128-byte tag at the end of the file. Some very old car stereos still expect it. We can write it as a fallback if you tick the option.
Our editor writes ID3v2.3 for wide compatibility and can optionally add ID3v1.1 so legacy players display the same info.
Step-by-step: editing tags with the online tool
- Open the editor on the home page and drop your MP3 into the box or use the Choose File button.
- Review pre-filled fields. We read existing ID3 tags locally and show what’s already inside.
- Update fields. Type the correct Title, Artist, Album, Year, Track #, Genre, and Comment. Use numbers for Track # (e.g., 3 or 3/10).
- Add or replace album art. Click Upload Album Art and choose a square JPG or PNG. A size between 600×600 and 1200×1200 looks sharp without bloating the file.
- Legacy support (optional). If you need older players to show tags, tick Also write ID3v1.
- Save. Hit Save tags & Download. Your browser writes the new tag and downloads a fresh MP3—your original file stays untouched.
Supported fields (ID3v2 → common names)
- Title — TIT2
- Artist — TPE1
- Album — TALB
- Year/Date — TDRC (and we keep TYER if present)
- Track number — TRCK (1 or 1/10)
- Genre — TCON (mapped to the classic list when needed)
- Comment — COMM
- Album art — APIC (front cover)
Album art tips
- Prefer square images; 1000×1000 is a safe default.
- JPG keeps size small; PNG preserves flat colors and logos.
- Use descriptive, clean artwork—players cache thumbnails and show them everywhere.
- Re-save overly large images; a cover under ~300 KB loads quickly on mobile players.
Troubleshooting
- Player still shows old info. Many apps cache tags. Remove and re-add the track, or clear the player’s cache/library.
- Weird characters in titles. The source file might have mixed encodings. Re-enter the fields and save; we write UTF-8/UTF-16 correctly in ID3v2.3.
- Car stereo ignores tags. Enable the Also write ID3v1 option; some legacy devices only read ID3v1.
- Download didn’t start. Your browser may block automatic downloads in a background tab. Click the page and try again.
- Track number looks wrong. Use numbers only (e.g., 5 or 5/12), not text.
Privacy and data handling
Your MP3 never leaves your device. Tag reading and writing happen entirely in the browser. We may set a tiny cookie to remember language and to hide the cookie bar. That’s it.
Common questions
Will editing tags change the audio quality?
No. We only change the metadata block; the audio stream stays untouched.
Which browsers are supported?
Current versions of Chrome, Edge, Firefox, Safari, and most Chromium-based browsers on desktop and mobile.
Can I batch edit multiple MP3s?
At the moment, the editor works one file at a time. It’s quick—you can drag the next file right after saving.
Why this guide exists
Every library eventually picks up a few tracks labeled “Unknown Artist” or artwork that doesn’t match. This page documents the small, repeatable steps we use to straighten things out quickly, without installing anything or trusting a random server with your music.