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MKV to FLAC Converter
Convert MKV files to FLAC in seconds, free and unlimited.
🔒 Files are processed on your device. Nothing is uploaded.
How to convert MKV to FLAC
- Click Choose files or drop your MKV files into the box. You can add several at once.
- Make sure FLAC is selected as the output format.
- Press Convert, then download your FLAC files.
MKV
Matroska container that can hold almost any codec, many audio tracks and subtitles.
FLAC
Free Lossless Audio Codec: CD quality at about half the size of WAV.
Video and audio are converted with FFmpeg running inside your browser. Short clips finish in seconds; long or high-resolution videos can take a few minutes because your own device does the work. Open Options to trim, resize or change quality.
Other MKV conversions
- MKV to MP4
- MKV to WEBM
- MKV to MOV
- MKV to AVI
- MKV to FLV
- MKV to WMV
- MKV to MPEG
- MKV to 3GP
- MKV to OGV
- MKV to M4V
- MKV to TS
- MKV to GIF
- MKV to MP3
- MKV to WAV
- MKV to OGG
- MKV to OPUS
- MKV to AAC
- MKV to M4A
- MKV to M4R
- MKV to WMA
- MKV to AC3
- MKV to AIFF
Convert other files to FLAC
- MP4 to FLAC
- WEBM to FLAC
- MOV to FLAC
- AVI to FLAC
- FLV to FLAC
- WMV to FLAC
- MPEG to FLAC
- MPG to FLAC
- M4V to FLAC
- 3GP to FLAC
- 3GPP to FLAC
- 3G2 to FLAC
- OGV to FLAC
- TS to FLAC
- MTS to FLAC
- M2TS to FLAC
- VOB to FLAC
- MXF to FLAC
- DV to FLAC
- MOD to FLAC
- RM to FLAC
- RMVB to FLAC
- MP3 to FLAC
- WAV to FLAC
- OGG to FLAC
- OGA to FLAC
- OPUS to FLAC
- AAC to FLAC
- M4A to FLAC
- M4B to FLAC
- M4R to FLAC
- WMA to FLAC
- AC3 to FLAC
- AIFF to FLAC
- AIF to FLAC
- AIFC to FLAC
- AMR to FLAC
- AU to FLAC
- CAF to FLAC
- VOC to FLAC
- WEBA to FLAC
FAQ
Is converting MKV to FLAC free?
Yes. Unlimited conversions, no sign-up, no watermark.
Are my files uploaded to a server?
No. FieldConvert processes files inside your browser, so your MKV files never leave your device. That makes it private and fast, because there is no upload or download wait.
Is there a file size limit?
Only your device's memory. Files up to about 2 GB work in most desktop browsers.