MKV to FLAC Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
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Drop multiple images to combine them into one PDF, Word document, or PowerPoint presentation — or convert each image separately.
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Convert MKV to FLAC online
Use this MKV to FLAC converter to turn MKV files into FLAC right in your browser — ideal for lossless music, audiophile libraries and archiving audio. MKV uses lossy compression and FLAC uses lossless compression, so file size and quality can change.
When should you convert MKV to FLAC?
- To extract the audio from your video as FLAC
- To get FLAC's built-in advantage: lossless quality
- To move past MKV's common limitation: not supported on all devices
- To open your files in apps that prefer FLAC
About MKV and FLAC files
MKV video
Strengths
- holds many tracks
- flexible container
- high quality
Limitations
- not supported on all devices
FLAC audio
Strengths
- lossless quality
- smaller than WAV
- great for archiving
Limitations
- larger than MP3
- not supported everywhere
MKV vs FLAC
| Format | MKV | FLAC |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | — | — |
| Best for | high-quality video and multiple audio and subtitle tracks | lossless music and audiophile libraries |
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Frequently asked questions
- Is this MKV to FLAC converter free?
- Yes. You can convert MKV to FLAC online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. The conversion runs entirely in your browser — no installs and no account required.
- Why convert to FLAC instead of staying with MKV?
- FLAC is known for being lossless quality — that's what you gain by converting instead of keeping the MKV file.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.
- Can I convert multiple MKV files at once?
- Yes. Drop several files to convert them in a batch and download the results as a single ZIP.