Convert AAC to FLAC

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

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AACFLACQuality Note

Converting from AAC (lossy) to FLAC (Lossless) will increase file size but will NOT improve audio quality. The quality lost during the original compression cannot be recovered.

About AAC

AAC

Advanced Audio Coding

AAC is a lossy audio codec designed as the successor to MP3. It provides better sound quality at similar bitrates and is widely used in streaming services.

Extension
.aac
Developed By
ISO/IEC
Released
1997
Compression
Lossy

Typical Use Cases

YouTubeStreaming servicesDigital broadcastingMobile devices

Pros

  • • Better quality than MP3
  • • Efficient compression
  • • Wide platform support

Cons

  • • Patent encumbered
  • • Less universal than MP3
  • • Variable encoder quality

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