Convert MP4 to MP3

MP4 in, MP3 out: free, no signup, and both files delete themselves within an hour.

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Files auto-delete in 1 hour
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You can convert MP4 to MP3 for free: upload your MP4 above and Flippy extracts the audio as MP3 in your browser, no signup needed.

Turning MP4 into MP3 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 MP3 built for playing on anything with a speaker, from new phones to twenty-year-old car stereos.

A classic MP4 to MP3 job: screen recordings and downloaded clips, bound for email, WhatsApp and anything with a speaker.

Why flip MP4 to MP3

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.

MP3 is the format that taught music to travel: small, scrappy, and welcome absolutely everywhere. MPEG-1 Audio Layer III. Perceptual coding: it throws away the parts of the signal your ear is least likely to miss. That makes it the right destination when what you need is playing on anything with a speaker, from new phones to twenty-year-old car stereos.

How to convert MP4 to MP3

1
Drop your MP4 file into the flipper above, or click to browse for it.
2
Check the output format: MP3 is already selected for you.
3
Hit Convert, give it a moment, then download your new MP3.

Best settings for MP4 to MP3

Quality tip for MP4 to MP3: 320 kbps keeps music effectively transparent, 192 kbps is the safe all-rounder, and 128 kbps is plenty for voice. The track inside your MP4 sets the ceiling: an extraction can match it, never beat it.

MP4 vs MP3, side by side

	MP4	MP3
Born	2001, the MPEG standards group, built on Apple's QuickTime design	1993, Fraunhofer Institute, Germany
Type	video · container	audio · lossy
Best for	playing everywhere: browsers, phones, TVs, editors, slide decks	playing on anything with a speaker, from new phones to twenty-year-old car stereos
Weak spot	very little day to day: as a container its quality depends on the codec inside	holding fine detail at low bitrates: it stays small by quietly discarding sound
Typical size	roughly 50–100 MB per minute at 1080p, depending on bitrate	about 1 MB per minute at 128 kbps: roughly a tenth of CD audio
Plays on	Every browser, phone, TV and editing app worth mentioning.	Everything. Phones, browsers, cars, smart speakers, ancient iPods.

Questions people ask

Will converting MP4 to MP3 lose quality?

The MP3 is encoded once from the exact track inside the MP4: from a typical soundtrack the difference is inaudible, but it can't sound better than what the video carried.

Will the MP3 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 about 1 MB per minute at 128 kbps: roughly a tenth of CD audio.

Where will the MP3 file play?

Everything. Phones, browsers, cars, smart speakers, ancient iPods. That's the usual reason people leave MP4 behind: MP3 simply opens in more of the places that matter.

How long does MP4 to MP3 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.

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