Matroska (MKV) → MP3
Convert Matroska (MKV) to MP3
Convert Matroska (MKV) (.mkv) to MP3 (.mp3) right in your browser. Free and unlimited. Your files never leave your device.
Drop a file, or click to browse
Drop a file anywhere, click to browse, or paste an image. Files never leave your device.
Extracts the audio track; the video is discarded.
Extracting the audio from a Matroska (MKV)
This keeps the sound from your Matroska (MKV) and drops the picture, saving it as MP3. Morphr decodes the audio track and re-encodes it in your browser — handy when you only want the song, talk or podcast, not the video.
Matroska (MKV) and MP3, explained
MKV (Matroska) is a flexible open container that can hold almost any codec, popular for high-quality archives. MP3 is the universal lossy audio format, playable on every device. It shrinks sound to a fraction of its size at a quality that is hard to fault for everyday listening.
Good to know
- Your Matroska (MKV) files never leave your device — everything converts locally in the browser, so even confidential ones stay private.
- Convert as many Matroska (MKV) files as you like at once; a batch comes back as a single ZIP.
- Everything runs in your browser, so large videos take longer and need enough free memory.
- No sign-up, no watermark and no size limit beyond your device’s memory.
The private way to turn Matroska (MKV) into MP3
With Morphr, the whole conversion runs inside your browser tab using your browser's built-in decoder, so your file is never uploaded to a server, queued, or stored. That makes it a safe choice for personal photos, scanned documents and anything you'd rather not hand to a third party.
New to these formats? Read the guides on Matroska (MKV) and MP3.
Frequently asked questions
- How do I convert Matroska (MKV) to MP3?
- Drop your Matroska (MKV) file onto the converter above (or click to browse), and Morphr converts it to MP3 right in your browser. When it's done, click download — there's nothing to install and no account to create.
- What do I get converting Matroska (MKV) to MP3?
- A single still frame, saved as MP3. Morphr extracts the frame in your browser — it doesn't re-encode the video, so the audio and motion aren't included, just the picture.
- Are my files uploaded to a server?
- No. The conversion runs entirely in your browser, so your Matroska (MKV) file never leaves your device.