MKV to MP3
Extract the audio from a MKV video and save it as MP3 — choose the bitrate, preview the result, and download. Runs entirely in your browser; the video is never uploaded.
Input
Higher bitrate = better quality, bigger file. 128–192 kbps suits most music; 64–96 kbps is fine for speech.
MP3 audio
Upload a MKV file, pick a bitrate and press Convert to MP3. Everything runs in your browser — the file is never uploaded.
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Guides
What MKV to MP3 does
Matroska MKV files often hold audio you want on its own — a movie rip or an OBS recording. Upload your MKV file, pick an MP3 bitrate, and download just the soundtrack as a standard MP3. The conversion happens in your browser — your file is never uploaded.
How to use it
- Upload a MKV file.
- Choose a bitrate (128–192 kbps suits most music, 64–96 kbps is fine for speech) and optionally mix down to mono.
- Click Convert to MP3, preview the result, then download it.
Good to know
The audio track is decoded by your browser's built-in decoder, so if your browser can play the file's sound, it can convert it. Some browsers can't decode certain MKV audio codecs (for example AC3 or DTS tracks); in that case re-save the video with AAC audio first. Long videos are decoded fully in memory, so very large files may be slow on low-memory devices.
Privacy
Decoding and MP3 encoding both run on your device. Nothing is sent to a server.