Convert FLAC to MKV

FLAC in, MKV out: free, no signup, and both files delete themselves within an hour.

Drop your file here to upload

FLAC MKV

Drop your FLAC here

Pick the video format you need: free, private, gone in an hour.
  • Free, no signup
  • No watermark, ever
  • Files auto-delete in 1 hour
  • Nothing to install

Flippy turns FLAC into MKV for free: upload the FLAC above and download it wrapped as MKV, sound untouched. No signup, and both files delete themselves within an hour.

It sounds backwards, but FLAC to MKV is a real need: plenty of platforms and tools only accept video, so Flippy re-packs your FLAC audio inside an MKV wrapper. Where MKV accepts your FLAC's codec the sound crosses over untouched; where it doesn't, it's re-encoded once. The MKV that comes out is built for high-quality rips and archives with multiple audio and subtitle tracks.

A classic FLAC to MKV job: lossless music archives and hi-fi rips, bound for the archive, with every audio and subtitle track kept.

Why flip FLAC to MKV

FLAC is the audiophile's handshake: CD-perfect sound at roughly half the shelf space. It was born in 2001, Josh Coalson; now kept by the open Xiph.Org Foundation, and its real weak spot is fitting in pockets: lossless is still large: and charming Apple's own apps.

MKV is the format that hoards: video, a dozen audio tracks and every subtitle, all in one box. The Matroska container: it will hold practically any codec ever made. That makes it the right destination when what you need is high-quality rips and archives with multiple audio and subtitle tracks.

How to convert FLAC to MKV

  1. 1

    Drop your FLAC file into the flipper above, or click to browse for it.

  2. 2

    Check the output format: MKV is already selected for you.

  3. 3

    Hit Convert, give it a moment, then download your new MKV.

Best settings for FLAC to MKV

Settings for FLAC to MKV: none to pick. Where the MKV container accepts your FLAC's audio codec, the stream is copied bit for bit; where it doesn't, Flippy re-encodes it once and leaves the levels alone.

FLAC vs MKV, side by side

FLAC MKV
Born 2001, Josh Coalson; now kept by the open Xiph.Org Foundation 2002, the open-source Matroska project
Type audio · lossless video · container
Best for archiving music with zero quality loss and a genuine size saving high-quality rips and archives with multiple audio and subtitle tracks
Weak spot fitting in pockets: lossless is still large: and charming Apple's own apps playing on TVs, iPhones and editors that never learned to open the box
Typical size around 5 MB per minute: half of WAV, five times an MP3 for video content, as big as whatever you put inside: movie files often run to several gigabytes; wrapping audio alone stays about the size of the FLAC
Plays on Hi-fi gear, Android, VLC, most desktop players; iTunes and Apple Music look away. VLC and desktop players love it; smart TVs, Apple devices and editors often don't.

Questions people ask

Will converting FLAC to MKV lose quality?

No. Wrapping audio in an MKV container doesn't touch the sound itself: it's the same stream in a different box.

Will the MKV file be bigger or smaller than my FLAC?

About the same, plus a sliver of container overhead. The audio stream is unchanged; MKV just adds a video-shaped envelope.

Where will the MKV file play?

VLC and desktop players love it; smart TVs, Apple devices and editors often don't. That's the usual reason people leave FLAC behind: MKV simply opens in more of the places that matter.

How long does FLAC to MKV conversion take?

Seconds for most FLAC files: there are no pictures to encode, so wrapping the audio as MKV is nearly as fast as copying it. Both files auto-delete within an hour.

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