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Formats / MKV

Convert MKV files

Convert MKV (Matroska Video) files into 60 formats, right in your browser. .mkv · video/x-matroska

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About this format

An open container from 2002. Any codec, any number of subtitle and audio tracks — which makes it the usual choice for archiving high-quality films. Playback needs something like VLC.

What it can hold

  • Video and audio (any codec)
  • Multiple subtitle tracks
  • Chapters
  • Attachments (fonts and so on)

What it cannot

  • Native playback on iPhone and TVs
  • Streaming optimisation

When you convert it

MKV → MP4Same codec, nothing lost. Multiple subtitles may collapse to one or drop.
MKV → MP3Sound only.
MKV → SRTJust the subtitle inside, extracted.

When it will not open

  • Windows Media Player and iPhone — open with VLC or convert to mp4
  • A TV that cannot show the subtitle track

In one line To keep the subtitles inside an mkv, use our Extract subtitles to pull an srt first. Converting to mp4 may drop them.

Convert this format into · 60

MKV→3G2MKV→3GPMKV→AACMKV→AC3MKV→ADXMKV→AIFFMKV→ALACMKV→APTXMKV→ASFMKV→AUMKV→AVIMKV→CAFMKV→DTSMKV→DVMKV→EAC3MKV→F4VMKV→FLACMKV→FLVMKV→G722MKV→GIFMKV→GSMMKV→GXFMKV→H261MKV→H263MKV→IVFMKV→JPGMKV→M2VMKV→M4AMKV→M4BMKV→M4VMKV→MKAMKV→MMFMKV→MOVMKV→MP2MKV→MP3MKV→MP4MKV→MPGMKV→MTSMKV→MXFMKV→NUTMKV→OGAMKV→OGGMKV→OGVMKV→OPUSMKV→PNGMKV→SBCMKV→SPXMKV→SWFMKV→TSMKV→TTAMKV→VOBMKV→VOCMKV→W64MKV→WAVMKV→WEBMMKV→WEBPMKV→WMAMKV→WMVMKV→WVMKV→Y4M

Convert into this format · 32

3G2→MKV3GP→MKVASF→MKVAVI→MKVBINK→MKVDV→MKVF4V→MKVFLV→MKVGIF→MKVGXF→MKVH261→MKVH263→MKVIVF→MKVM2V→MKVM4V→MKVMOV→MKVMP4→MKVMPG→MKVMTS→MKVMXF→MKVNSV→MKVNUT→MKVOGV→MKVRM→MKVSMK→MKVSWF→MKVTS→MKVVOB→MKVWEBM→MKVWMV→MKVWTV→MKVY4M→MKV

Frequently asked questions

How do I convert a MKV file?

Drop the file into the window, pick the target format, and download the result. No account required.

Do I need to install anything?

No. It runs in your browser. A Windows installer is available separately if you prefer one.

What if the format I want isn't listed?

Every engine's capabilities are merged into a single graph, so unlisted pairs are chained automatically through intermediate formats along the least-lossy route.