FLAC — Free Lossless Audio Codec
FLAC is a lossless compression format developed by the Xiph.Org Foundation. It compresses audio without any quality loss — you can always decompress back to the original PCM audio with zero degradation.
FLAC Strengths
- 40–60% smaller than WAV — same quality
- Excellent metadata support (tags, artwork)
- Supports high-resolution audio (24-bit, 192kHz)
- Used by Tidal, Qobuz, Amazon Music HD
- Patent-free, open-source format
- Can always convert back to WAV losslessly
FLAC Limitations
- Not supported by all DAWs (Pro Tools, Logic)
- Limited hardware sampler support
- Not supported by all DJ hardware
- Not natively supported by browsers
- Not supported by game engines
Use FLAC for: Archiving your music collection, high-resolution audio libraries, lossless streaming services, and any situation where you need lossless quality with smaller files than WAV.