Convert MKV to MP3

Free, in your browser, no signup: files delete themselves within an hour.

Drop your file here to upload

Free, no signup
No watermark, ever
Files auto-delete in 1 hour
Nothing to install

You can convert MKV to MP3 for free: upload your MKV above and Flippy extracts the audio as MP3 in your browser, no signup needed.

Turning MKV into MP3 isn't really a conversion: it's an extraction: Flippy lifts the audio track out of your MKV and re-packs it on its own. You keep the sound and drop the pixels, swapping an MKV that runs as big as whatever you put inside: movie files often run to several gigabytes for an MP3 built for playing on anything with a speaker, from new phones to twenty-year-old car stereos.

Why flip MKV to MP3

MKV is the format that hoards: video, a dozen audio tracks and every subtitle, all in one box. It was born in 2002, the open-source Matroska project, and its real weak spot is playing on TVs, iPhones and editors that never learned to open the box.

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 MKV to MP3

1
Drop your MKV 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.

MKV vs MP3, side by side

	MKV	MP3
Born	2002, the open-source Matroska project	1993, Fraunhofer Institute, Germany
Type	video · container	audio · lossy
Best for	high-quality rips and archives with multiple audio and subtitle tracks	playing on anything with a speaker, from new phones to twenty-year-old car stereos
Weak spot	playing on TVs, iPhones and editors that never learned to open the box	holding fine detail at low bitrates: it stays small by quietly discarding sound
Typical size	as big as whatever you put inside: movie files often run to several gigabytes	about 1 MB per minute at 128 kbps: roughly a tenth of CD audio
Plays on	VLC and desktop players love it; smart TVs, Apple devices and editors often don't.	Everything. Phones, browsers, cars, smart speakers, ancient iPods.

Questions people ask

Will converting MKV to MP3 lose quality?

No: extraction copies the audio that's already in the MKV. Whatever the soundtrack sounded like inside the video, that's what your MP3 will sound like.

Will the MP3 file be bigger or smaller than my MKV?

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 MKV behind: MP3 simply opens in more of the places that matter.

How long does MKV 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.

More ways to handle these formats

MKV conversion Change MP3 format Compress MP3 Trim MP3 Change MP3 speed MP3 Merger MKV to GIF converter Audio extractor