Tag MP3 Files and Add Cover Art
An MP3 tag editor that runs in your browser. Change the title, artist, album, year, genre and track number, and add an image to an MP3 as its cover art. The sound is copied over unchanged, byte for byte. Edit one song or a whole album, then download.
- 1Open MP3s
- 2Edit tags and cover
- 3Download
1Open MP3 files and edit the tags
or drop MP3 files here (one or a whole album)
Your MP3s never leave your device. They are read and re-tagged in your browser. We count visits and finished downloads (tool name only) with analytics that sets no cookies.
2Cover art
No cover yet. Drop an image here, paste one, or press Add cover image.
Open an MP3 first.
How to tag an MP3
- Open your MP3s. Press Choose MP3 files, or drop one file or a whole album on the box. The tags already in each file are filled in.
- Edit the tags. Type the title, artist, album, album artist, genre, year, track and disc. Track and disc take a number, or number/total such as 3/12.
- Add cover art. Press Add cover image, or drop or paste a picture on the cover box. Keep it as it is, or crop it to a square.
- Download. Press Download tagged MP3. With several files open, Download all as ZIP saves every file at once.
How to add an image to an MP3
Open the MP3, press Add cover image and pick a JPG or PNG. The picture is stored inside the MP3 as its front cover, the picture music players show for the song. To use the same cover for a whole album, open all the songs, set the cover on one of them and press Copy album, album artist, year, genre, disc, composer and cover to all files.
What you get
- Unchanged audio. Only the tag at the start of the file is rewritten. The sound is copied straight from your file, so the quality, length and bitrate stay exactly the same. We checked this in our tests: the audio bytes of every file we saved matched the original, and the independent tag reader Mutagen read back every tag as typed.
- Standard ID3 tags. The tag follows the ID3v2.3.0 or ID3v2.4.0 document at id3.org (read 27 October 2026). ID3v2.3 is the default. Text in any language is saved: as ISO-8859-1 when it fits, otherwise as UTF-16 (v2.3) or UTF-8 (v2.4).
- Nothing else lost. Lyrics, extra pictures, ReplayGain values and other frames in the file are kept, unless you untick the box. A few frames exist in only one ID3 version; if you switch versions, the status line tells you which were dropped.
- An album at once. Copy the album details and cover from one song to all the open songs, name the files from their tags, and save them in one ZIP.
FAQ
How do I tag an MP3 file?
Open it on this page, type the title, artist, album and other details into the boxes, and press Download tagged MP3. The new file has your tags and the same audio. Replace the old file with it in your music folder.
How do I add album art to an MP3?
Open the MP3, then press Add cover image, or drop or paste a picture onto the cover box. Choose a square size if you want the picture cropped, then download. The image is saved inside the file as its front cover.
Should I pick ID3v2.3 or ID3v2.4?
If you are not sure, keep ID3v2.3, the default. It is the older version, and it stores text in any language as UTF-16. ID3v2.4 adds UTF-8 text and a full recording date. Both are written to the id3.org documents. If a player shows no tags after saving as v2.4, save the file again as v2.3.
Does editing tags change the sound quality?
No. The audio is not decoded or re-encoded. Only the tag at the start of the file is replaced, and the audio bytes after it are copied as they are. The file size changes only by the difference in tag size, mostly the cover image.
Can I edit the tags of many MP3s at once?
Yes. Open several files. Pick each one in the list to set its title and track number, and use the copy button to give them all the same album, album artist, year, genre, disc, composer and cover. Then press Download all as ZIP. The File name setting can rename every file from its tags.
What is the ID3v1 option?
Some MP3s also carry a small, older ID3v1 tag at the very end. It holds only short Latin-alphabet text: up to 30 characters each for the title, artist and album (id3.org ID3v1 page, read 27 October 2026). The option shows only when one of your files has it. By default it is updated to match your new tags; you can also leave it alone or remove it.
Does it work with M4A, FLAC or WAV files?
No. This editor writes ID3 tags, which are the tags MP3 files use. M4A, FLAC and WAV store their tags differently, so they are not accepted.
Does this tool upload my music?
No. Your MP3s are read and re-tagged by your browser on your own device and are never sent to a server. You can check: open your browser's developer tools, go to the Network tab, and tag a file. The page counts visits and finished downloads (tool name only) with analytics that sets no cookies, and no file data is ever sent (see privacy).