Convert WEBM to M4A

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

Turning WEBM into M4A isn't really a conversion: it's an extraction: Flippy lifts the audio track out of your WEBM and re-packs it on its own. You keep the sound and drop the pixels, swapping a WEBM that runs often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264 for an M4A built for sounding great anywhere in the Apple ecosystem.

Why flip WEBM to M4A

WEBM is video the way browsers like it: open, royalty-free and built to stream. It was born in 2010, Google, out of its VP8 acquisition, and its real weak spot is life outside the browser: editors, TVs and Apple devices get picky.

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 WEBM to M4A

1
Drop your WEBM 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.

WEBM vs M4A, side by side

	WEBM	M4A
Born	2010, Google, out of its VP8 acquisition	2003, popularized by Apple's iTunes Store
Type	video · container	audio · lossy
Best for	embedding on the web without licensing worries	sounding great anywhere in the Apple ecosystem
Weak spot	life outside the browser: editors, TVs and Apple devices get picky	older Windows software and stubborn car stereos that expect a .mp3
Typical size	often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264	like AAC: better-than-MP3 sound at about 1 MB per minute
Plays on	Every modern browser; hit-and-miss in editing apps and on Apple hardware.	iPhone, Mac and iTunes natively; most modern Android and Windows apps too.

Questions people ask

Will converting WEBM to M4A lose quality?

No: extraction copies the audio that's already in the WEBM. 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 WEBM?

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 WEBM behind: M4A simply opens in more of the places that matter.

How long does WEBM 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 WEBM format Change M4A format Make M4A smaller Cut M4A Change M4A speed Combine M4A Make a GIF from WEBM Get audio from video