Convert MKV to FLAC
Turn Matroska video files (.mkv) into Free Lossless Audio Codec (.flac) in seconds. Drop one file or a whole batch: the conversion happens right in your browser, with no sign-up, no watermark and no upload.
How to convert MKV to FLAC
- 1Drop your MKV files into the box above, or click to choose them.
- 2FLAC is already selected. Adjust the options if you like.
- 3Click Convert and download your FLAC files.
Good to know
- Only the sound is kept: the audio track is extracted and saved as FLAC, and the picture is discarded.
- Large videos are processed as a stream, so even long files work as long as your device has enough memory.
Frequently asked questions
Is converting MKV to FLAC free?
Yes. There is no sign-up, no watermark and no limit on the number of files.
Are my files uploaded?
No. Everything runs in your browser, so your files are never uploaded to a server. That also makes it fast, because nothing has to travel over the network.
Will I lose quality converting MKV to FLAC?
No noticeable loss: the conversion keeps the content of your MKV file intact.
Can I convert several files at once?
Yes. Drop as many MKV files as you like. They are converted one after another and you can download them individually or as a ZIP.
Is there a file size limit?
There is no fixed limit. Very large files depend on your device's memory, since the conversion runs locally.
What is MKV?
MKV is a flexible open container that can hold many video, audio and subtitle tracks.
What is FLAC?
FLAC compresses audio without any loss, so it is popular for music archives.