Convert MKV to FLV

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Converting MKV to FLV is free: drop your MKV above, hit convert, and download the FLV. Files delete themselves within an hour.

Most MKV to FLV conversions are wrapper swaps: the pictures stay pictures, they just trade MKV's box for one built for nothing new: today it's mostly old downloads waiting to be rescued. If the codec inside your MKV is one FLV accepts, Flippy keeps quality bit-for-bit identical; if not, it re-encodes once, carefully, at matching quality.

Why flip MKV to FLV

MKV is the format that hoards: video, a dozen audio tracks and every subtitle, all in one box. It was born in 2002, the open-source Matroska project, and its real weak spot is playing on TVs, iPhones and editors that never learned to open the box.

FLV is a relic of the Flash era: the format YouTube grew up on, stranded when Flash died. The Flash Video container, typically holding old H.263, VP6 or early H.264 streams. That makes it the right destination when what you need is nothing new: today it's mostly old downloads waiting to be rescued.

How to convert MKV to FLV

1
Drop your MKV file into the flipper above, or click to browse for it.
2
Check the output format: FLV is already selected for you.
3
Hit Convert, give it a moment, then download your new FLV.

MKV vs FLV, side by side

	MKV	FLV
Born	2002, the open-source Matroska project	2002, Macromedia (later Adobe), for Flash Player
Type	video · container	video · container
Best for	high-quality rips and archives with multiple audio and subtitle tracks	nothing new: today it's mostly old downloads waiting to be rescued
Weak spot	playing on TVs, iPhones and editors that never learned to open the box	playing anywhere at all since Flash was switched off in 2020
Typical size	as big as whatever you put inside: movie files often run to several gigabytes	small files with dial-up-era expectations about quality
Plays on	VLC and desktop players love it; smart TVs, Apple devices and editors often don't.	Almost nothing modern; VLC and converters are its retirement home.

Questions people ask

Will converting MKV to FLV lose quality?

Usually not: when the video codec is compatible, Flippy swaps the container without re-encoding, so quality is untouched. If a re-encode is needed, it happens once at matching quality.

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

Similar, unless a re-encode is involved: then it depends on the codec. FLV typically runs small files with dial-up-era expectations about quality.

Where will the FLV file play?

Almost nothing modern; VLC and converters are its retirement home. That's the usual reason people leave MKV behind: FLV simply opens in more of the places that matter.

How long does MKV to FLV conversion take?

When it's a pure container swap it's nearly instant, since nothing is re-encoded. Full re-encodes take roughly as long as the video plays, often less.

More ways to handle these formats

Convert MKV Change FLV format Make FLV smaller FLV Trimmer FLV to JPG Change FLV speed