Matroska Video
An open container that can hold almost any codec plus multiple audio and subtitle tracks.
- Type
- video
- Best for
- archiving films with several tracks
No account · no upload · no watermark
Convert MKV to FLAC. Completely free.
Drop your MKV and get an FLAC back, right here in this tab. Your own computer does the work, so nothing gets uploaded, and there's no paid version.
MKV to FLAC converter
Free Lossless Audio Codec
Lossless audio that keeps every detail in about half the space of WAV.
- Type
- audio
- Best for
- archiving music without quality loss
What to expect
Only the soundtrack is kept, so the picture is dropped and the FLAC is far smaller than the MKV. FLAC can't add back detail the video's compressed sound has already lost, but it won't lose any more.
How to convert MKV to FLAC
- Drop your MKV on this page, or choose it from your device.
- FLAC is already selected. Bitrate, trim and loudness are under More options.
- Press Convert and listen to the result before you download it.
Questions
Is this MKV to FLAC converter really free?
Yes, completely. Every tool and every format is free, and there's no paid version, account, watermark or daily limit.
Do my files get uploaded?
No. Your browser does the work on your own device, so your files stay with you. Closing the tab clears them from memory.
Can I convert several files at once?
Yes. Drop as many as you like, and the results can be downloaded together as a ZIP.
Does it work on a phone?
Yes, in a current mobile browser. Large files are limited by how much memory your device can spare.
What should I know about MKV to FLAC?
Only the soundtrack is kept, so the picture is dropped and the FLAC is far smaller than the MKV. FLAC can't add back detail the video's compressed sound has already lost, but it won't lose any more.
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Ready to convert your MKV?
- Completely free
- Nothing uploaded
- No account
- No watermark