Pull the audio out of an MKV video as a FLAC. It is converted in your browser, so the file never leaves your device.
Drop MKV files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop MKV (Matroska) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab and can take a while for large files.
Save the FLAC, or download everything as one ZIP if you converted several files.
The MKV to FLAC converter is part of this page and runs inside your browser. Your videos are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so work starts the moment you press Convert. How long it takes depends on your device and the size of the file.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
MKV does not play on iPhones, in QuickTime or in most browsers and editors. FLAC keeps full quality at about half the size of WAV. MKV is at home in films with several audio and subtitle tracks; FLAC is the usual choice for archiving music at full quality. The FLAC contains the soundtrack only; the picture is dropped.
The defaults suit most files. Under Options you can trim the start and end. This is demanding work for a browser: a long or high-resolution file can take several minutes, and your device does all of it, so keep the tab open.
The conversion uses your browser's own video and audio codecs (WebCodecs), with hardware acceleration where the device has it; the file is read from disk as it goes and can be up to 2 GB. Where the browser lacks a codec, the page falls back to the compatibility engine.
MKV is an open container that can hold practically any video and audio format plus multiple subtitle tracks. That flexibility is why it is popular for films, and why Apple devices and browsers refuse it.
Opens in VLC, Plex and many TVs; not iPhones, QuickTime or most browsers
MKV converterFLAC compresses audio to roughly half the size of WAV without losing anything, like a ZIP for sound. It is the standard for lossless music collections. Apple's Music app is the notable holdout.
Opens in Android, Windows, VLC, most hi-fi players; Apple Music does not import it
FLAC converter| MKVMatroska video | FLACFLAC audio | |
|---|---|---|
| Stands for | Matroska | Free Lossless Audio Codec |
| Type | Video container | Audio |
| Compression | Depends on what is inside | Lossless |
| Introduced | 2002, by the Matroska project | 2001, by Josh Coalson and the Xiph.Org Foundation |
| Opens in | VLC, Plex and many TVs; not iPhones, QuickTime or most browsers | Android, Windows, VLC, most hi-fi players; Apple Music does not import it |
| Best for | Films with several audio and subtitle tracks | Archiving music at full quality |
| File extension | .mkv | .flac |
No. The MKV to FLAC conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
The soundtrack is re-encoded as FLAC. FLAC itself adds no loss.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the MKV file, press Convert and save the FLAC. There is nothing to install.
Yes. Files up to 2 GB are accepted. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.