Convert MPEG-4 Video (Apple) (.m4v) to Free Lossless Audio Codec (.flac) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .m4v file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flac file when it's ready.
M4V files from Apple's ecosystem contain H.264 video with AAC audio, typically from iTunes purchases or Apple TV recordings. FLAC (Free Lossless Audio Codec) is an open-source lossless audio compression format that achieves 50-70% compression while guaranteeing bit-perfect audio reconstruction. Converting M4V to FLAC extracts the audio and encodes it losslessly, producing files that are significantly smaller than WAV or AIFF while preserving every sample of the decoded audio.
FLAC is the universal standard for lossless audio archiving, supported by virtually every platform except Apple's default apps (though Apple added FLAC playback in iOS 11 and macOS High Sierra). If you need to extract audio from M4V files for archiving, editing, or high-fidelity playback on non-Apple systems, FLAC provides the best combination of lossless quality, compression efficiency, and cross-platform support.
FFmpeg decodes the AAC audio from the M4V container into raw PCM samples, then encodes them with the FLAC encoder at a configurable compression level (0-12, where higher numbers mean smaller files but slower encoding). The output is a standalone FLAC file with Vorbis comment metadata support. FLAC typically achieves 50-70% of the original PCM size — so a 100 MB WAV equivalent becomes 30-50 MB in FLAC with zero quality loss.
FLAC is mathematically lossless — every PCM sample is preserved perfectly. The decoded AAC audio from the M4V is captured exactly, though any artifacts from the original AAC compression remain. The advantage over keeping AAC is that FLAC can be edited, processed, and re-encoded without accumulating additional lossy compression artifacts.
| Device | M4V | FLAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Native | Partial |
| iPhone/iPad | Native | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
M4V to FLAC is the optimal choice for cross-platform lossless audio extraction. FLAC's open standard, efficient compression, and universal compatibility make it the go-to format for anyone who needs perfect audio quality from Apple video content without the Apple ecosystem lock-in of ALAC.
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| Funktion | M4V | FLAC |
|---|---|---|
| Fullstandigt namn | iTunes Video | Free Lossless Audio Codec |
| Filandelse | .m4v | .flac |
| Bast for | Apple ecosystem | Lossless compression |