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Free tools · Audio and video

MP4 to MP3

The soundtrack, as an MP3. Runs on your credits in the console.

This one runs on your credits. The soundtrack, as an MP3. Runs on your credits in the console.

Sign in and get 500 free credits every month — enough for many files — then drop the file in the workbench and run mp4 to mp3 there.

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

Sign in and run it — free credits included (opens in a new tab)

Runs on your credits in the console — 500 free a month, about 2 per megabyte here.

How to mp4 to mp3

  1. Sign in — 500 free credits a month.
  2. Drop the video in the workbench.
  3. Run Extract audio and download the MP3.

What happens to your file

The audio track is decoded and encoded to MP3 at a bitrate matched to the source, so nothing is gained by upsampling and nothing lost by default. Video frames are discarded.

Position is reported while it runs — "0:12 of 3:40" — so a long file does not look stuck.

Media processing costs real compute per minute of audio, so it runs against your own credits, the first 500 each month free.

Questions

What does it cost?

Two credits per megabyte of video, minimum one. A 60 MB clip is 120 credits; sign-up gives 500 a month free.

Can I get WAV or FLAC instead?

Yes, in the console: the same operation offers mp3, wav, aac and flac.

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": "video.extract-audio",
    "options": {
      "format": "mp3"
    }
  }'

The same operation, video.extract-audio — The soundtrack alone: mp3, wav, aac or flac. Upload first with the quickstart; every option is on the operations page. 500 free credits a month, then $5 per thousand.