Convert FLV to MKV

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FLV MKV

Drop your FLV here

Pick the video format you need: free, private, gone in an hour.

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Video Formats

MP4 (.mp4)

MOV (.mov)

AVI (.avi)

GIF (.gif)

3GP (.3gp)

FLV (.flv)

M4V (.m4v)

MK3D (.mk3d)

MOOV (.moov)

MPA (.mpa)

MPE (.mpe)

MPEG (.mpeg)

MPG (.mpg)

MXF (.mxf)

QT (.qt)

VOB (.vob)

WEBA (.weba)

Audio Formats

MP3 (.mp3)

WAV (.wav)

M4A (.m4a)

AAC (.aac)

FLAC (.flac)

OGG (.ogg)

AIF (.aif)

AIFC (.aifc)

AIFF (.aiff)

AMR (.amr)

AU (.au)

CAF (.caf)

DSS (.dss)

GSD (.gsd)

GSM (.gsm)

M2V (.m2v)

MP2 (.mp2)

MPGA (.mpga)

MTS (.mts)

MUS (.mus)

OGA (.oga)

OGV (.ogv)

OGX (.ogx)

RM (.rm)

SWF (.swf)

TS (.ts)

WEBM (.webm)

WMA (.wma)

WMV (.wmv)

XSPF (.xspf)

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

Most FLV to MKV conversions are wrapper swaps: the pictures stay pictures, they just trade FLV's box for one built for high-quality rips and archives with multiple audio and subtitle tracks. If the codec inside your FLV is one MKV accepts, Flippy keeps quality bit-for-bit identical; if not, it re-encodes once, carefully, at matching quality.

Why flip FLV to MKV

FLV is a relic of the Flash era: the format YouTube grew up on, stranded when Flash died. It was born in 2002, Macromedia (later Adobe), for Flash Player, and its real weak spot is playing anywhere at all since Flash was switched off in 2020.

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 FLV to MKV

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

FLV vs MKV, side by side

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

Questions people ask

Will converting FLV to MKV 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 MKV file be bigger or smaller than my FLV?

Similar, unless a re-encode is involved: then it depends on the codec. MKV typically runs as big as whatever you put inside: movie files often run to several gigabytes.

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 FLV behind: MKV simply opens in more of the places that matter.

How long does FLV to MKV 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

FLV Converter MKV conversion Shrink MKV Trim MKV MKV screenshot MKV speed changer FLV Flipper