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Free tools › Audio and video

MP3 to M4A

The format Apple devices prefer, with the same sound in fewer bytes.

This one runs on your credits. The format Apple devices prefer, with the same sound in fewer bytes.

Sign in and get 500 free credits every month — enough for many files — then drop the file in the workbench and run mp3 to m4a there.

Pick a file below to see exactly what it would cost.

Sign in and run it — free credits included

More free conversions, where you upload. The Fylane extension does the same work inside any upload form, on its own free share every day.About the extension

How to convert MP3 to M4A

  1. Drop the audio.
  2. Nothing to choose.
  3. Press Convert and download.

What happens to your file

The audio is decoded and encoded as AAC at 160 kbps in an M4A container. From WAV or FLAC that is one clean encode; from MP3 it is a second lossy hop, small at this bitrate.

Questions

M4A or MP3?

AAC sounds a little better than MP3 at the same size and Apple devices treat it as native; MP3 plays on more old hardware.

Do this in code

curl -X POST https://api.fylane.dev/v1/jobs \
  -H "Authorization: Bearer $FYLANE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "file_id": "<file id>",
    "operation": "audio.convert",
    "options": {
      "format": "aac"
    }
  }'

The same operation, audio.convert — mp3, wav, aac, flac, ogg, opus or aiff out of whatever came in. Upload first with the quickstart; every option is on the operations page. 500 free credits a month, then $5 per thousand.