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MP4MP4 to MP3The everyday standardMOVMOV to MP3QuickTime and Apple videoWebMWebM to MP3Browser and screen recordingsAVIAVI to MP3Older video collectionsMKVMKV to MP3Flexible media containersM4VM4V to MP3Unprotected Apple videoiPhoneiPhone video to MP3The reliable Files workflow
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MKV AUDIO EXTRACTOR

Convert MKV to MP3

Extract audio from an MKV video on your device. VideoToMP3 creates a convenient MP3 without sending the original file to a remote server.

Local conversion No uploads Free to use
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Convert MKV to MP3

Choose your MKV file below. Conversion happens privately on your device.

1 Pick a video2 Convert3 Download
Works with
MP4MOVWEBMAVIMKVM4V

Free tool · No guarantee. Conversion may fail or produce unexpected output depending on your file, browser and device. Keep your original file and verify the MP3. Read the Disclaimer.

How to convert MKV to MP3

MKV is a flexible container used for films, recordings and archived media. VideoToMP3 reads the available audio track and creates a separate MP3.

  1. Choose the MKV file in the converter above.
  2. Leave the tab open while the selected audio is decoded and encoded.
  3. Preview the MP3 and save it to your device.

Multiple audio tracks

An MKV can contain several languages or commentary tracks. The current converter uses the default audio track selected by the file; it does not yet provide a track picker.

MKV codec compatibility

Many MKV files work, but the container can include a wide variety of codecs. Uncommon lossless, surround or proprietary audio may not convert successfully in the browser.

COMMON QUESTIONS

MKV → MP3, explained.

How do I extract MP3 audio from MKV?

Choose your MKV above. The browser extracts its default audio track, encodes it as MP3 and lets you preview and save the result.

Which MKV audio track is converted?

The current converter uses the file’s default audio track. It does not currently offer a selector for alternate languages or commentary tracks.

Is the MKV uploaded?

No. The selected MKV is processed locally in your browser and is not uploaded to our conversion servers.

Why can an MKV fail to convert?

MKV can contain many codecs. A file may fail when its audio codec is unsupported, the file is damaged or the browser does not have enough memory.

Can I convert a large MKV file?

Files up to 8 GB can be selected, but large conversions depend on your device. Keep the browser open and prevent the device from sleeping.

Can I convert MKV to MP3 on iPhone or Android?

Yes. Open this page in a modern mobile browser and select the MKV file from local storage. On iPhone, saving large videos to Files before choosing them is usually the most reliable method.

Does this MKV to MP3 converter work on Windows, Mac and Chromebook?

Yes. It runs in modern desktop browsers on Windows, macOS, ChromeOS and Linux. Conversion speed depends on the browser, processor, available memory and file size.

What MP3 bitrate should I choose?

Use 192 kbps for a practical balance of quality and file size. Choose 128 kbps for speech or smaller downloads, and 256–320 kbps when higher music quality matters.

Why is my MKV to MP3 conversion taking so long?

The work happens on your device, so long or high-resolution videos can take several minutes. Keep the page open, prevent the device from sleeping and avoid switching apps on mobile.

EXPLORE EVERY CONVERTER

Choose another video format.

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