Convert FLV to ALAC — Free Online Converter

FLV files contain audio compressed with MP3, AAC, or Nellymoser codecs inside Adobe's Flash Video container. ALAC (Apple Lossless Audio Codec) is Apple's lossless compression format introduced in 2004 and open-sourced in 2011. ALAC achieves roughly 50-60% compression of PCM data with zero quality loss, making it the preferred lossless format for the Apple ecosystem — iTunes, Apple Music, iPhone, iPad, and HomePod all support ALAC natively. Converting FLV to ALAC extracts the audio and stores it in a lossless, Apple-optimized container.

If you want to archive FLV audio without any generation loss while keeping file sizes manageable, ALAC is the ideal choice for Apple users. Unlike uncompressed AIFF or WAV, ALAC files are roughly half the size while being bit-for-bit identical when decoded. Every Apple device since the iPod nano (2005) supports ALAC playback without third-party apps.