MKV to FLAC
Extract the soundtrack from MKV video as FLAC audio. Everything runs on your device, so even large files never leave it.
From
MKV (.mkv)
To
FLAC (.flac)
Advanced options
FLAC is lossless, so there is no bitrate to choose — the audio is stored at full quality.
- Only the soundtrack is kept — the video track is discarded, which makes this much faster than a full conversion.
- Converting to FLAC cannot restore detail that MKV already discarded — it only stops further loss.
- Conversion uses the audio and video codecs built into your browser, so results depend on your device. Unsupported targets are greyed out.
Drop MKV files here, or use the button below
Converted on your device — your files are never uploaded.
About these formats
- MKV — Matroska video
- Flexible container favoured by archives — holds almost any codec.
- FLAC — Free Lossless Audio Codec
- Lossless compression — identical to the original at about half the size.
- Only the soundtrack is kept — the video track is discarded, which makes this much faster than a full conversion.
- Converting to FLAC cannot restore detail that MKV already discarded — it only stops further loss.
- Conversion uses the audio and video codecs built into your browser, so results depend on your device. Unsupported targets are greyed out.
Other MKV conversions
Private by design — no upload, no sign-up
This MKV to FLAC converter runs locally, using your own browser. Your files are never uploaded to a server, so they stay on your device from start to finish.
- Are my MKV files uploaded to a server?
- No. The MKV to FLAC conversion runs locally in your browser using your own device's CPU. Your files are never uploaded, never transmitted over the network and never stored on a server.
- Is there a file size limit for MKV to FLAC?
- There is no imposed limit, because nothing is uploaded. The practical ceiling is your device's available memory, so very large files may be slower on older hardware.
- Does it work offline?
- Yes. Once the page has loaded, converting MKV to FLAC keeps working without a network connection, since the conversion happens entirely on your device.
- Do I need to sign up or install anything?
- No. There is no sign-up, no account and no software to install. Pick a MKV file and convert it to FLAC straight away.
- Is converting MKV to FLAC free?
- Yes, it is free to use, with no watermarks and no daily quota.