Free tool
ID3 Tag Editor — online, in your browser
Open an MP3, edit its title, artist, album, year and cover art, and download the freshly tagged copy. Free, no account, no install — and your file never leaves your device.
Everything runs locally in your browser: the audio never leaves your device, and saving produces a fresh copy — your original file is untouched.
Why an online ID3 tag editor?
The classic tag editors — Mp3tag, Kid3, MusicBrainz Picard — are excellent desktop software, but installing an app is overkill when you just need to fix one mislabeled track, correct a year, or drop proper cover art into a file someone sent you. This ID3 tag editor does that job in the browser: open, edit, save, done. Because it has no backend, it is also the private option — nothing to upload, no size limits, works offline once loaded.
What clean tags get you
Every player builds its library from tags. Wrong artist spellings split one artist into three; a missing album artist scatters compilations; absent covers leave gray squares on your CarPlay screen. Five minutes of tag hygiene is the cheapest upgrade a local music library can get — and it benefits every device at once, including players like Trove that read tags and artwork straight from your files.
ID3 tag editing FAQ
Versions, formats, covers and safety, answered.
How do I edit ID3 tags online?
Drop an MP3 onto the editor above. Its current tags and cover load instantly; change any field, replace the cover if you like, and press 'Save tagged MP3'. A freshly tagged copy downloads — your original file stays untouched.
Is this ID3 tag editor really free and private?
Yes on both counts. There is no account, no watermark and no server: the MP3 is read and rewritten entirely inside your browser, so your music never leaves your device.
Which tag version does it write?
ID3v2.3 — the version with the widest player support, including iTunes/Apple Music, Windows, Android and every serious desktop player. Title, artist, album, album artist, year, track number, genre and embedded cover art (APIC) are written.
Can it edit FLAC or M4A tags?
FLAC, M4A, OGG and other formats currently open in read-only mode — you can inspect their tags and extract the cover, but saving is MP3-only for now. Writing FLAC/M4A tags in the browser is on our roadmap.
How do I change the album cover of an MP3?
Open the MP3, click 'Replace cover…' and choose a JPG or PNG — ideally a square one. Need a high-resolution cover first? Grab one with our Album Art Finder, which downloads official artwork up to 3000×3000.
Will editing tags re-encode or damage the audio?
No. Tags live in a separate block before the audio stream; the editor replaces that block and copies the audio bytes through untouched, so there is zero quality loss.
Tags fixed? Give them a player that respects them
Trove Player for Mac and iPhone organizes your library straight from your tags — FLAC, ALAC, DSD, NAS streaming, synced lyrics. Free, one-time Pro purchase, never a subscription.
More free tools: Extract Album Art · Album Art Finder · LRC Maker