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Free tools › Audio and video

MP3 to FLAC

For the library that only takes FLAC. Honest about what it cannot restore.

This one runs on your credits. For the library that only takes FLAC. Honest about what it cannot restore.

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

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

What happens to your file

The MP3 is decoded to PCM and encoded as FLAC, which compresses without losing anything from that point on. The file will be several times larger than the MP3 and sound exactly like it — FLAC cannot invent the detail the MP3 encoder discarded.

Questions

Will it sound better than the MP3?

No; identical. Convert to FLAC when a player, a car or a library insists on it, not for quality. For quality, go back to the CD or the original WAV.

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": "flac"
    }
  }'

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.