MP3

Remove audio metadata

Up to 100 files at once. Mixed formats are fine.

Removing metadata from an audio file strips the ID3 tags, the embedded cover art and any comments while leaving the audio itself untouched — the samples are copied across without being decoded. The file usually gets noticeably smaller, because cover art is often the largest thing in a tagged music file.

  • Where it runsIn your browser. A file you are stripping for privacy is never uploaded.
  • What is removedCamera, location, author, software and timestamps written into the MP3.
  • What staysThe content itself, untouched and at the same quality — this is not a re-encode.

Remove audio metadata

The artwork is usually most of what you remove

A tagged MP3 carries the title, artist, album, year, genre and comments — and very often a cover image at full resolution, which can be several hundred kilobytes in a file of three megabytes. Removing the tags removes the picture with them, and the size difference is immediately visible.

Recordings that are not music carry different things. A voice memo may carry the device name; an interview exported from editing software may carry the project name, the operator and a description field that a field recorder filled in automatically.

Removed without decoding

MP3, FLAC and WAV all keep their metadata in blocks at a known place — in front of the audio, behind it, or in labelled chunks. Removing them is a copy that skips those blocks, so no decoder runs and the audio is bit-for-bit identical.

The one part that needs care is FLAC, where the metadata blocks are a chain and the last one is flagged as last. Removing the final block without moving that flag produces a file that a decoder reads as noise — so the flag moves to whatever block is now last, and a test checks it.

What the tags actually say about you

Beyond title and artist, an audio file commonly carries the encoder that made it, the software that tagged it, a purchase identifier from a store, an acoustic fingerprint, comments left by whatever ripped it, and occasionally a user name. None of it is audible and all of it travels.

For music bought from a store, the purchase identifier is the field worth knowing about — it ties the file to an account, which is the point of it. For a recording you made, the encoder and software fields say which machine and which application, which is more than most people intend to publish alongside an audio clip.

Removing tags is not the same as removing the audio watermark

Some commercial audio carries a watermark encoded into the sound itself, at a level designed to be inaudible and to survive re-encoding. That is part of the waveform rather than part of the metadata, and stripping tags does not touch it.

It is worth being clear about, because the two get conflated. This removes what the file says about itself in its tag blocks. It cannot remove something that was mixed into the audio, and no tool that leaves the recording listenable can.

The artwork is why the file shrinks so much

A single embedded cover image at full resolution is frequently several hundred kilobytes, and some files carry more than one — front cover, back cover, a booklet scan. On a four-minute track at 192 kbps that can be a fifth of the file.

So stripping metadata from a music library often produces a size reduction that looks like compression and is not: the audio is untouched and identical. If the artwork is wanted, it is worth extracting before stripping rather than discovering afterwards that it is gone.

What a player shows once the tags are gone

The file name, and little else. A music application sorts by whatever it can read, so a stripped library arrives as a list of file names in whatever order the folder gives, with no album grouping and no artwork.

That is fine for a recording being sent to someone or submitted somewhere, and it is usually not what anyone wants for a library they listen to. Stripping is the right step before a file leaves and the wrong one for files staying put.

How to remove metadata from a audio file

  1. Drop your audio file onto this page, or click to choose one.
  2. Look at what was found before anything is removed.
  3. Remove it and download. The content of the file is untouched.

Removing audio file metadata: common questions

Is the audio re-encoded?

No. For MP3, FLAC and WAV the audio bytes are copied without ever being decoded, so what you get back is bit-for-bit what you put in. M4A is rewritten by the browser's media handling, which likewise copies the encoded samples rather than re-encoding them.

Does the cover art go too?

Yes — it is stored inside the tag, so it goes with the tag. That is usually where most of the saved space comes from.

Will my music player still show the track?

It will show the file name and nothing else, because the title and artist were exactly what you removed. If you want a clean file that still identifies itself, remove the metadata and then add back only the fields you want in a tag editor.

Is the file uploaded?

No. The file is rewritten inside your browser and never leaves your device — which is the only arrangement that makes sense for a tool whose job is to remove information you would rather not share.

How do I know it worked?

The page lists what it found before the removal and inspects the result afterwards, so you watch the list go empty. You can also check independently: the properties dialog of whatever application opens the file will show the same thing.

Sometimes the better answer is a different format — especially for a photograph stored as MP3.