Drop an MP3 to load its tags, edit the fields, add a cover, and download the tagged file. Everything runs in your browser; your file never leaves your device.
MP3 tag editor changes the ID3 metadata of a song, title, artist, album, year, genre, track number and comment, and can embed a cover image (album art). Drop an MP3 and its existing tags pre-fill the form; edit what you want, optionally attach a JPEG or PNG cover, and download the tagged file.
It runs through ffmpeg compiled to WebAssembly with stream copy (`-c copy`), so the audio is never re-encoded, writing tags is fast and lossless. No account, no watermark.
No. ffmpeg compiled to WebAssembly writes the tags in this browser tab, your file is read into memory on your own device, the ID3 fields (and any cover image, as an attached picture) are written with -c copy so the audio is never re-encoded, and the tagged file is offered as a local download. Nothing reaches Sunasty or any third party. Open your browser's DevTools, go to the Network tab and watch: no request carries your audio.
No. Tags are written with stream copy, meaning the audio data is passed through untouched, only the ID3 metadata block changes. There is no re-encoding and no quality loss.
Yes. Attach a JPEG or PNG and it is embedded as the ID3 attached picture (APIC), which is what players show as album art. Leaving the cover field empty keeps the existing one.
The form is pre-filled on a best-effort basis from the file’s ID3v2 text frames (title, artist, album, year, genre, track). Unusual encodings may not be read, but you can always type the values in manually.
Yes, once the page has loaded. Because the processing happens on your device, you can disconnect from the network and the tool keeps working. This is the clearest proof that your data never leaves your machine.
It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.