How it works
- Drop an MP3. Up to 200 MB — its existing tags and embedded cover art are read locally, nothing is uploaded.
- Edit the fields. Title, artist, album, album artist, composer, release date, track number, genre, ISRC, BPM, key, label, copyright, lyrics and comment — and replace, keep or remove the cover art (JPEG or PNG, up to 30 MB, optimized automatically).
- Download the retagged MP3. Only the fields you changed are rewritten — every other tag (ISRC, BPM, lyrics, custom tags…) is kept as is. The audio itself is not re-encoded, so the quality is strictly identical.
Features
- All the fields that matter. Title, artist, album, album artist, composer, release date (year or full date), track number, genre and comment — plus release details: ISRC (format checked), BPM, key, label, copyright and lyrics.
- Cover art handling. Keep the existing artwork, replace it with a JPEG or PNG (up to 30 MB), or remove it. A new cover is resized to 3000 px at most, kept under 1 MB and can be cropped to a square.
- No re-encoding, ever. Only the tag block is rewritten; the audio bytes are untouched, so there is zero quality loss.
- Album mode (Premium). Drop several MP3s at once: fill in the album, artist, release date, genre, label, copyright and cover once, adjust each title, and the track numbers (1/12, 2/12…) follow the order of the list. Everything comes back in a single ZIP, audio untouched.
- 100% in your browser. Your MP3 never leaves your computer — reading and writing tags happens locally.
FAQ
Is this ID3 tag editor free?
Yes. Without an account you get 2 free uses per day across AudioKit's free tools; with a free account, 5 per day. A use is only counted when you download the retagged file; loading an MP3 and editing the fields is free. AudioKit Premium removes the daily limit.
Is my MP3 uploaded to a server?
No. The file is read, retagged and rebuilt entirely in your browser and never leaves your machine. The only network call is a tiny anonymous counter that tracks your daily free quota.
Which files does it accept?
MP3 only, up to 200 MB — ID3 is the MP3 tagging standard, and the tool keeps your file's ID3v2 version (2.3 or 2.4) and every tag you don't edit; an untagged file gets an ID3v2.3 block, the version with the widest player support. Got a FLAC, WAV or M4A? Convert it to MP3 first with our Audio converter, then tag it here.
Which tags should I fill in for distribution?
Honest answer: if you release through a distributor (DistroKid, TuneCore, CD Baby…), they take the metadata from their upload form, not from your file's ID3 tags. Where clean tags really matter is everywhere else: DJ software, media players and car stereos display them, and files you sell or send directly (Bandcamp, press kits, promos) represent you. For those, fill at least title, artist, album and year, add track number and genre, and embed a square cover.
Does editing the tags re-encode or degrade the audio?
No — and that's the point of this tool. Only the ID3 tag block at the front of the file is rewritten; the audio frames are copied bit-for-bit, so the sound is strictly identical to the original, no matter how many times you retag. For the cover, JPEG and PNG up to 30 MB are accepted: a new cover is automatically resized to 3000 px at most and saved as a JPEG of 1 MB at most (optionally cropped to a square), because some players and car stereos choke on heavy artwork. An image that already fits is embedded as is.