Three simple steps
How to edit MP3 metadata
- 01
Choose an MP3 from your device. ToolYogi reads its existing ID3 metadata locally in the browser.
- 02
Edit title, artist, album, track, year, genre, composer, comments and cover artwork.
- 03
Write a fresh ID3v2.3 tag and download the tagged MP3. The MPEG audio itself is not re-encoded.
Which metadata can I edit?
The current editor supports title, artist, album, album artist, track number, disc number, year, genre, composer, copyright, comments and front cover artwork.
Does editing metadata reduce audio quality?
No. The MP3 audio frames are not decoded and re-encoded. The tool rewrites the ID3 metadata area and keeps the MPEG audio data intact.
Which ID3 version is written?
The current editor writes ID3v2.3 for broad compatibility. It can read common existing ID3 tags, but saving creates a new tag from the fields shown in the editor.
What happens to custom or unsupported tags?
Saving rewrites the existing ID3 tag. Fields not represented in this editor, including some custom or specialized frames, may be removed. Keep an original copy if those tags matter.
Can I edit M4A or FLAC metadata?
Not in this first version. The writer is intentionally MP3-only so output behavior stays predictable. M4A and FLAC metadata writing can be added separately.
Does ToolYogi upload my MP3 or artwork?
No. Metadata reading and writing happen locally in your browser. The MP3 and selected artwork are not uploaded to ToolYogi.
A little more clarity
Frequently asked questions
Is the MP3 Metadata Editor free?
Yes. The current tool works without creating an account.
Can I change album artwork?
Yes. Add, replace or remove front cover artwork using JPG or PNG images up to 8 MB.
Can I remove all metadata?
You can clear every field shown in the editor and remove the cover artwork, then save a fresh ID3v2.3 tag.
Will the MP3 be re-encoded?
No. The MPEG audio is not re-encoded, so editing tags does not introduce lossy audio generation.
Why might some old tags disappear?
The writer replaces the existing ID3 tag. Only the fields represented and saved by this editor are written to the new tag.
Is my file uploaded?
No. The MP3 and artwork remain in the browser during editing.
Open-source tag processing
Existing metadata is read with jsmediatags and MP3 ID3v2.3 tags are written with browser-id3-writer. Both operations run in the browser and the MPEG audio stream is not re-encoded.