Convert AVI to FLAC — Free Online Converter

AVI's RIFF structure commonly wraps audio encoded as uncompressed PCM (16/24-bit), MPEG Layer 3 (MP3), or Dolby AC3. FLAC (Free Lossless Audio Codec) is the open-source standard for lossless audio compression, achieving 50–70% size reduction compared to raw PCM while guaranteeing bit-perfect reconstruction. Converting AVI to FLAC extracts the audio track and compresses it losslessly, producing a standalone audio file widely supported on Linux, Android, Windows, and most modern audio equipment.

FLAC is the preferred lossless format for audiophiles, music archivists, and open-source enthusiasts. When extracting audio from AVI files — live recordings, music videos, or film audio — FLAC preserves every detail while being roughly half the size of the equivalent WAV or AIFF. Unlike ALAC (Apple-only ecosystem), FLAC enjoys universal support across platforms, media servers (Plex, Jellyfin), and high-fidelity audio players (foobar2000, DeaDBeeF, Roon).