Convert mkv to flac
Converted on your device. Files never leave this tab. Output tops out around 2 GB.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many MKV files as you like.
Real FLAC output
Encoded by ffmpeg, the same library the command-line tools use — not a renamed extension.
About MKV
Matroska Video
An open container first released in 2002 that can hold almost any video and audio codec, plus several audio tracks, subtitle tracks and chapters in one file. Use it to keep multiple languages and subtitles together; convert to MP4 for devices that do not read MKV.
About FLAC
Free Lossless Audio Codec
A lossless codec from Xiph.Org, first released in 2001, that typically shrinks CD audio to 50 to 70 percent of its WAV size and decodes to identical samples. Use it to archive music and CD rips without losing any quality.