Audio format

.flac

Free Lossless Audio Codec

FLAC is the leading open-source lossless audio format. It compresses audio files to about 50-60% of their original size without any quality loss — perfect for audiophiles and music archival.

MIME type

audio/flac

Developer

Xiph.Org Foundation

Introduced

2001

Advantages

  • Lossless — identical to original audio
  • 50-60% smaller than WAV
  • Open source and royalty-free
  • Excellent metadata and tagging support

Limitations

  • Larger than lossy formats like MP3
  • Not supported by all portable devices
  • Slower to encode than lossy formats
  • iTunes/Apple Music prefer ALAC

When to use FLAC

Hi-fi music collections
Audio archival and preservation
CD ripping at full quality
Audiophile music streaming

Technical details

FLAC uses linear prediction and entropy coding for lossless compression. It supports up to 32 bits per sample, 655,350 Hz sample rate, and up to 8 channels. Average compression is 50-70% of PCM.

Convert FLAC to other formats

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Convert to FLAC from other formats

7 formats can be converted to FLAC

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