Convert FLAC to AU

Convert FLAC files to AU format online for free. No upload required, 100% private.

Upload File

Drag and drop audio files here, or click to select

🔒 Your files are processed locally in your browser. Nothing is uploaded to our servers.

FLACAULossless

Converting between FLAC and AU preserves full audio quality. The output file will be larger as it stores raw audio data.

About FLAC

FLAC

Free Lossless Audio Codec

FLAC is a lossless audio format that compresses audio without any quality loss. It is the preferred format for audiophiles and music archival.

Extension
.flac
Developed By
Xiph.Org Foundation
Released
2001
Compression
Lossless

Typical Use Cases

Music archivalHi-Fi audioAudio editing sourceAudiophile collections

Pros

  • • Lossless compression
  • • Smaller than WAV
  • • Open source
  • • Good metadata support

Cons

  • • Larger than lossy formats
  • • Not universally supported
  • • Some devices incompatible

About AU

AU

Sun Microsystems Audio

AU is a simple audio format originally developed by Sun Microsystems for Unix systems. It supports both compressed and uncompressed audio.

Extension
.au
Developed By
Sun Microsystems
Released
1980s
Compression
Uncompressed

Typical Use Cases

Unix/Linux systemsLegacy applicationsSimple audio storage

Pros

  • • Simple format
  • • Unix native
  • • Lightweight

Cons

  • • Outdated
  • • Limited features
  • • Poor cross-platform support