Convert MKV to MP3
Pick an MKV from your computer or phone, trim it if you like, and save the sound as an MP3. It all happens in your browser.
Convert an MKV to MP3Free, no sign-up. Your video never leaves your device.
How it works
- 1 / 3
Pick your MKV
From your phone or computer, up to 500MB and 20 minutes. It opens right in your browser.
- 2 / 3
Trim it, if you like
Drag the handles to keep only the part you want. Or keep it all.
- 3 / 3
Extract and save as MP3
Tap Extract audio. MP3 is picked for you on the download button, and WAV, MP3 or WebM are one tap away.
What people use it for
- Keep the audio of a recorded stream or talk.
- Pull the sound of a clip for your own edit.
- Listen to a long recording without the video.
- Save a performance as a song.
Questions
How do I convert MKV to MP3?
Open the converter, pick the MKV, trim it if you like, then tap Extract audio. MP3 is already chosen on the download button, so the next tap saves it.
Does my MKV get uploaded?
No. The conversion runs in your browser, so the video never leaves your device, and a big file doesn't wait on an upload.
Is there a size limit?
Videos can be up to 500MB and 20 minutes long. Trim first if you only need part of it.
What quality is the MP3?
Good for listening on any phone, car or speaker. If you're going to edit the audio in a music or video app, download it as WAV instead: it's larger, but nothing more is lost when you edit it.
Does it work on iPhone and Android?
Yes, in a recent version of Safari or Chrome, with nothing to install. Pick the video from your Photos or Files.
Is it free?
Yes. No sign-up, no watermark, and no limit on how many videos you convert to MP3.