Convert MKV to FLAC online. This conversion removes the picture from the MKV file and saves its audio track as FLAC. Free batch processing with no signup or watermark.
Add one or more MKV files. You can review the complete batch before processing it.
FLAC is already selected for this page. Add multiple videos, choose the audio output and set a trim range when only part of the track is needed.
Start the batch, then download and check the finished FLAC file or files.
This conversion removes the picture from the MKV file and saves its audio track as FLAC. Video resolution and frame rate do not carry into the result.
MKV (Matroska) is a flexible open container that holds high-definition video, multiple audio tracks and subtitles in one file. It is popular for movies and archiving, but is not natively supported by every device or browser.
MKV plays in VLC and most modern media players; some phones, browsers and TVs need it converted to MP4 first.
FLAC is a lossless audio format that compresses music with zero quality loss - every detail of the original recording is preserved. It is the favourite of audiophiles and for archiving CDs, though files are much larger than MP3.
FLAC plays in VLC, foobar2000, and most modern players; for iPhones or car stereos that reject it, convert to MP3 or M4A.
ToolSpice can convert your MKV files to these other formats:
These other formats can be converted to FLAC on ToolSpice: