Convert AAC to FLAC Online

Upload an AAC audio track and select FLAC as the output. Converter processes the file online and gives you a lossless audio container for archiving.

Choose a file to convert

How to convert aac to flac

  1. Upload a .aac file.
  2. Choose FLAC and start the conversion.
  3. Download the FLAC result.

Example

Upload voice-note.aac and download voice-note.flac.

When to use this conversion

  • Make an AAC recording usable in another editor or player.
  • Store a lossless copy in a music library or archive.
  • Keep the source recording while distributing a lossless audio container for archiving.

Best practices

  • Keep the original audio file, especially if it is your master recording.
  • Converting a lossy source to WAV or FLAC does not restore lost detail.
  • Listen to the beginning and end of the output and check its duration before sharing.