Convert QT to FLAC — Free Online Converter

FLAC (Free Lossless Audio Codec) is an open-source lossless compression format developed by the Xiph.Org Foundation. It typically compresses audio to 50-70% of the original PCM size while allowing perfect bit-for-bit reconstruction. Extracting audio from Apple's QuickTime container into FLAC preserves every detail of the original recording in the most widely supported open lossless format available.

QT files bundle video data you may not need with audio data you do. FLAC is the universal lossless standard — supported on Android, Linux, Windows (via native codec in Windows 10+), and all major media players. Unlike Apple's proprietary ALAC, FLAC is open-source and has the broadest cross-platform support of any lossless audio format.