MOV to M4A Converter
Convert MOV to M4A free — no upload, no signup
To convert MOV to M4A, drop your MOV video into the box below and click Convert. Fylo converts with ffmpeg running inside your browser, so nothing is uploaded and there's no signup or watermark. Extract iPhone video audio as M4A without re-encoding.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
Advanced
How to convert MOV to M4A
Add your MOV videos
Drag and drop MOV files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Pick a bitrate
192 kbps suits music and 128 kbps or less suits speech. Sample rate and mono/stereo are under Advanced.
Convert and download
Click Convert, then download each M4A file or all of them as one ZIP.
Why convert MOV to M4A?
M4A keeps the original AAC sound from iPhone videos and plays natively on Apple devices.
What happens when you convert MOV to M4A?
AAC audio in the MOV is copied into M4A without re-encoding; other codecs are converted to AAC.
How does Fylo convert MOV to M4A?
Fylo decodes the soundtrack of the MOV (usually AAC) with ffmpeg compiled to WebAssembly and encodes it with FFmpeg's AAC encoder at 160 kbps inside an MPEG-4 (M4A) container. The video stream is skipped entirely, which is why extraction is fast — the M4A is a fraction of the video's size. The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between MOV and M4A?
MOV is the QuickTime File Format that Apple introduced in 1991. MP4 was later standardised on the same structure, so the two are close relatives. iPhones record MOV files (usually H.264 or HEVC video with AAC audio), and professional cameras and editors use MOV for high-quality ProRes footage.
M4A is an MPEG-4 container that holds only audio — usually AAC, or Apple Lossless (ALAC). Apple popularised the extension with the iTunes Store in 2003; iPhone Voice Memos and many podcasts also use it. Audiobooks often use the related .m4b extension.
Learn more: MOV format guide · M4A format guide
| Property | MOV | M4A |
|---|---|---|
| Type | Video | Audio |
| Contains | Video (H.264, HEVC, ProRes) + audio (AAC, PCM) | Audio only, lossy (aac) or lossless (alac) |
| Developed by | Apple | Apple / MPEG |
| Introduced | 1991 | 2003 |
| Compatibility | Apple devices, editors; limited on Windows and Android | Apple devices, Android, Windows 10+, browsers |
| Best for | iPhone videos, professional editing (ProRes) | iTunes/Apple Music libraries, voice memos, audiobooks |
Frequently asked questions
Is it lossless?
Yes for AAC audio, which iPhones record.
Can I use it as a ringtone?
Use the Ringtone Maker to trim it to 30 seconds and save as M4R.
Is my MOV file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your MOV file is read directly from your device and never sent anywhere.
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