How do I change the artist, title and album art of an MP3?

Drop an MP3 into the tool, edit Title, Artist, Album, Year, Genre and other fields, use Change cover to pick an image, then click Save tagged MP3 to download the re-tagged file.

Can I edit tags on M4A or FLAC files?

Not saving. The tool can read tags from MP3, M4A and FLAC files, but writing tags is supported for MP3 only, as ID3v2. Other formats would need a different editor.

Does my music file get uploaded when I edit its tags?

No. Tags are read with jsmediatags and written with browser-id3-writer in your browser, so the file is processed locally on your device.

Can it fill in artist and title from the file name?

Yes, if the file is named like Artist - Title.mp3, use the fill-from-filename button. A Rename saved file option can also name the download Artist - Title.mp3.

Why do I get an error saying the tags could not be written?

The message says to make sure it is a valid MP3. Writing only works for MP3 files, so a renamed M4A or FLAC, or a corrupt file, will fail.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Are my files uploaded?

No. Your files are opened and processed inside your browser and are not sent to LibraTool. Some tools first download a processing engine or AI model to your browser; that download contains no data of yours.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install. Very large files can be slow or run out of memory on a phone, so use a computer for those.

🎼

Free Audio Tag Editor (ID3)

Edit MP3 ID3 tags — title, artist, album, year, genre and cover art — 100% in your browser. No upload, and the audio is not re-encoded. Free and private.

File size depends on your deviceFiles stay privateNo login requiredFree forever100% local, no re-encodeAlbum art

Edit your music's title, artist, album, year and cover art — entirely in your browser. Nothing is uploaded.

Drop a file here, or click to browse

MP3, M4A, FLAC · processed on your device

or press Ctrl+V to paste from your clipboard

Browse files

🔒 Your audio and metadata never leave your device.

Common uses

Edit MP3 TagsChange the title, artist and album of an MP3 in your browser.
Add Album Art to MP3Embed cover artwork into your music file.
Batch Tag MP3sRe-tag tracks one after another quickly.
Remove MP3 MetadataClear out tags for privacy before sharing.
Read FLAC TagsView the metadata stored in a FLAC file.
Read M4A TagsInspect the tags inside an M4A/AAC file.

How It Works

Edit the title, artist, album, year, genre and cover art of your music files right in your browser. Tags are read with jsmediatags and written as ID3v2 to MP3 files — your audio never leaves your device and is not re-encoded.

1
Add a track
Drag in an MP3 (or M4A/FLAC to read its tags). It stays on your device.
2
Edit the fields
Change the title, artist, album, year and genre, and replace the cover image.
3
Save
Writing tags is supported for MP3 (ID3v2). Download the re-tagged file.
4
Private by design
No upload, no server, no account — unlike tools that cap free tiers or convert your files.

Your audio and metadata never leave your device — everything happens in your browser.

Related Tools

📘

EPUB Metadata & Cover Editor

Change an EPUB's title, author, series, language, tags and description, or add and replace its cover, so it shows and sorts properly on Kindle, Kobo and Apple Books. Everything else in the book stays as it was. Runs in your browser; the book is not uploaded.

Try itFiles stay local

🎵

Add Music to Video

Add music or any audio to a video: replace the original sound or mix it in, with volume, start time, loop and fade-out. The picture is copied, not re-encoded. Runs in your browser.

Try itFiles stay local

🎚️

Audio Fade In/Out

Add a fade-in and fade-out to any audio clip with your choice of curve, previewed live on the waveform.

Try itFiles stay local

Free Audio Tag Editor (ID3)

Common uses

How It Works

Related Tools

EPUB Metadata & Cover Editor

Add Music to Video

Audio Fade In/Out

Frequently Asked Questions