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.

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

How to convert MP3 to FLAC

Drop the audio.
Nothing to choose.
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 it once, not on every form

Fixing a file here means downloading it and going back to the form. The Fylane extension does this work inside the form instead, on the file you already have.

And it keeps the result. The next application that asks for a résumé, a cover letter and a photo fills all three from one tap, each one refitted to what that site accepts.

Your files stay in the browser, encrypted, on your machine. Nothing is uploaded to keep them and nothing is sent anywhere to fill a form.

Filmed from the extension: three upload fields on a job application, filled from one tap.

Add to Chrome — free What it does

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.