MKV to MP3
Convert MKV files to MP3 in seconds, for free. Nothing to install.
Files are deleted from the server automatically after 1 h.
Why convert MKV to MP3?
- Keep only the sound: save music, a lecture or a podcast from a video.
- MP3 is one of the most widely supported formats — it opens almost anywhere.
You don't need to install any software to convert MKV to MP3. Upload your file, choose MP3 and download the result a few seconds later. The conversion runs on our servers and your file is deleted automatically after 1 h.
MKV vs MP3: comparison
| Feature | MKVMatroska Video | MP3MPEG-1 Audio Layer III |
|---|---|---|
| Developer | Matroska | Fraunhofer IIS / MPEG |
| Released | 2002 | 1993 |
| Type | video | audio |
| Compression | lossy | lossy |
| Opens with | VLC, MPV, PotPlayer | VLC, Windows Media Player, iTunes / Apple Music |
Tip: choose the bitrate. 128 kbps is enough for speech; 320 kbps is the best quality for music.
How it works
- Choose or drop your MKV file.
- Pick MP3 as the output format.
- Click “Convert” and download your file.
MKV to MP3: questions and answers
Will quality be lost when converting MKV to MP3?
MP3 uses compression, but at the default settings the difference is hard to hear or see. You can choose a higher bitrate in Options.
How long does MKV to MP3 conversion take?
It depends on the length: a short file takes a few seconds, a long video can take a few minutes. Progress is shown as a percentage.
What is the maximum MKV file size?
Up to 500 MB per file and up to 20 files at once — for free.
Can I convert MKV to MP3 on my phone?
Yes. TezConvert works in any browser on Android and iPhone — no app needed.
How do I open a MP3 file?
MP3 files open in: VLC, Windows Media Player, iTunes / Apple Music.
Are my files safe?
Files are used only for the conversion, never shown to anyone, and deleted automatically after 1 h. The original is deleted right after conversion.