Convert MP4 to M4A

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You can convert MP4 to M4A for free: upload your MP4 above and Flippy extracts the audio as M4A in your browser, no signup needed.

Turning MP4 into M4A isn't really a conversion: it's an extraction: Flippy lifts the audio track out of your MP4 and re-packs it on its own. You keep the sound and drop the pixels, swapping an MP4 that runs roughly 50–100 MB per minute at 1080p, depending on bitrate for an M4A built for sounding great anywhere in the Apple ecosystem.

Why flip MP4 to M4A

MP4 is the world's default video: the file that plays before anyone has to think about it. It was born in 2001, the MPEG standards group, built on Apple's QuickTime design, and its real weak spot is very little day to day: as a container its quality depends on the codec inside.

M4A is AAC in Apple's favorite outfit: the audio-only MP4 your iPhone speaks natively. An MP4 container holding only audio: usually AAC, occasionally Apple's lossless ALAC. That makes it the right destination when what you need is sounding great anywhere in the Apple ecosystem.

How to convert MP4 to M4A

1
Drop your MP4 file into the flipper above, or click to browse for it.
2
Check the output format: M4A is already selected for you.
3
Hit Convert, give it a moment, then download your new M4A.

MP4 vs M4A, side by side

	MP4	M4A
Born	2001, the MPEG standards group, built on Apple's QuickTime design	2003, popularized by Apple's iTunes Store
Type	video · container	audio · lossy
Best for	playing everywhere: browsers, phones, TVs, editors, slide decks	sounding great anywhere in the Apple ecosystem
Weak spot	very little day to day: as a container its quality depends on the codec inside	older Windows software and stubborn car stereos that expect a .mp3
Typical size	roughly 50–100 MB per minute at 1080p, depending on bitrate	like AAC: better-than-MP3 sound at about 1 MB per minute
Plays on	Every browser, phone, TV and editing app worth mentioning.	iPhone, Mac and iTunes natively; most modern Android and Windows apps too.

Questions people ask

Will converting MP4 to M4A lose quality?

No: extraction copies the audio that's already in the MP4. Whatever the soundtrack sounded like inside the video, that's what your M4A will sound like.

Will the M4A file be bigger or smaller than my MP4?

Much smaller: you're keeping the audio and dropping the video, which is most of the weight. Expect like AAC: better-than-MP3 sound at about 1 MB per minute.

Where will the M4A file play?

iPhone, Mac and iTunes natively; most modern Android and Windows apps too. That's the usual reason people leave MP4 behind: M4A simply opens in more of the places that matter.

How long does MP4 to M4A conversion take?

It scales with length and resolution: short clips finish in seconds, long HD videos can take a few minutes. Files auto-delete within an hour after.

More ways to handle these formats

Change MP4 format Change M4A format Reduce M4A file size Trim M4A Increase M4A volume Change M4A speed MP4 to GIF Extract audio from video