How do I convert MKV to MP3?

Drop the file on this page and press the button. It runs in your browser, so there is no upload, no account and no daily limit.

Why will my device not open a MKV file?

Phones, televisions, consoles and every editing suite that is not free. The container is the problem rather than what is inside it.

Does converting to MP3 lose quality?

MP3 is lossy, so a little goes at any bitrate. 192 kbps is transparent for speech and close to it for music; 320 is the ceiling and is only worth it when the source was better than the target.

Is the file uploaded?

No. The decode and the encode both happen in the page, and no request carries the audio anywhere. Watch the network panel while it runs.

ON YOUR DEVICE · FREE

MKV to MP3

An MKV is almost always a download

…

What the conversion sites charge

Convertio	~~$6.99 / month~~	converts on their servers, with a daily cap
Zamzar	~~$12 / month~~	converts on their servers, with a size cap
CloudConvert	~~$10 / month~~	converts on their servers, priced per minute
PixPunk	Free	no upload, no account, no daily cap

An MKV often carries several audio tracks, one per language. The first one is taken here, which is usually the original. Their caps exist because every conversion runs on a machine they rent. Yours runs on the machine in front of you.

1
Where your MKV came from
An MKV is almost always a download. It is a container that will hold anything, which is why it is popular with people who care about tracks and unpopular with the devices they own.
2
Why you are converting it
Phones, televisions, consoles and every editing suite that is not free. The container is the problem rather than what is inside it. MP3 is the format nothing refuses. That is its entire remaining argument and it is a good one.
3
What it costs
MP3 is lossy, so a little goes at any bitrate. 192 kbps is transparent for speech and close to it for music; 320 is the ceiling and is only worth it when the source was better than the target.

FAQ

How do I convert MKV to MP3?: Drop the file on this page and press the button. It runs in your browser, so there is no upload, no account and no daily limit.
Why will my device not open a MKV file?: Phones, televisions, consoles and every editing suite that is not free. The container is the problem rather than what is inside it.
Is there anything odd about MKV?: An MKV often carries several audio tracks, one per language. The first one is taken here, which is usually the original.
Does converting to MP3 lose quality?: MP3 is lossy, so a little goes at any bitrate. 192 kbps is transparent for speech and close to it for music; 320 is the ceiling and is only worth it when the source was better than the target.
Is the file uploaded?: No. The decode and the encode both happen in the page, and no request carries the audio anywhere. Watch the network panel while it runs.

MKV to MP3

What the conversion sites charge

Where your MKV came from

Why you are converting it

What it costs

FAQ

The other tools