MKV to MP3 Converter
Extract the audio from an MKV video and save it as MP3 — right in your browser.
MKV (Matroska) is a flexible video container often used for movies and high-quality recordings, sometimes carrying several audio tracks. MP3 gives you a single, universally playable audio file.
This tool reads the audio from your MKV and re-encodes it to MP3 locally — your file is never uploaded.
How to convert MKV to MP3
- 1Drop your MKV file into the area above — or click to browse.
- 2The output format is already set to MP3. Adjust the quality settings if the format supports them.
- 3Click convert, then download your MP3 file. Everything runs locally — nothing is uploaded.
Frequently asked questions
The tool extracts the primary audio track. For files with several language tracks, the default track is used.
Because processing happens in your browser, the practical limit depends on your device's memory. Large movie-length files may take longer on older machines.
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is uploaded to any server.
Yes. Once the page has loaded, the tool works completely offline. For the best experience, install PrivaDeck as a PWA from your browser.
Other conversions
Need a different format?
Open the full audio converter to pick from MP3, WAV, OGG, AAC, FLAC, M4A and Opus, convert in batches, and adjust bitrate, sample rate and channels.
Open the full Audio Converter