Tools / File Converter / MKV to MP3 Converter

MKV to MP3 Converter

Convert MKV files to MP3. Free, without uploading.

This tool converts MKV files to MP3. MKV (Matroska) is a flexible container that can hold several audio and subtitle tracks. It is common on computers, but phones and TVs don’t always play it.

MP3 is the most common audio format. It uses lossy compression and plays on almost every device. Only the audio of the MKV video is kept and saved as MP3; the picture is dropped. MP3 is lossy; you choose the quality from 96 to 320 kbps. 192–256 kbps is enough for music, 128 kbps for speech.

Conversion runs on your device; your file is never sent to a server. The components download once on first use, and later conversions start right away.

How to use

1. Choose the MKV video, drag it in, or paste its link.
2. Choose the audio quality; optionally enter a start and end time.
3. Press "Convert" and download the MP3 file.

Frequently asked questions

Will audio quality drop when converting to MP3?

MP3 is lossy, so there is a small loss you won’t hear at higher bitrates. If the source is already lossy, a higher bitrate won’t improve it.

Is there a file size limit?

No fixed limit; your device’s memory decides. Computers usually handle files up to 1–2 GB.

Is my file uploaded?

No. Your MKV file is converted to MP3 inside your browser.