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VOB to MKV converter, without the upload.

Turn VOB videos into MKV. It is converted in your browser, so the file never leaves your device.

Drop VOB files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

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How to convert VOB to MKV

  1. Add your VOB videos

    Drop VOB (DVD video) 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.

  2. MKV is already chosen

    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.

  3. Download

    Save the MKV, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The VOB to MKV converter is part of this page and runs inside your browser. Your videos are never sent to ToAny or to anyone else.

  • No upload, no queue

    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.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

VOB to MKV: what to expect

VOB is a DVD-only format, large and unsupported on phones and in browsers. MKV can carry several audio and subtitle tracks in one file. A VOB file usually holds MPEG-2 video with AC3, DTS or PCM audio and bitmap subtitles. VOB is at home in ripping and archiving DVDs; MKV is the usual choice for films with several audio and subtitle tracks.

The defaults suit most files. Under Options you can lower the resolution, trade quality against file size, remove the sound and 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.

This pair uses the compatibility engine, ffmpeg built for the browser, because VOB is not handled by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB.

VOB vs MKV

VOB

DVD video

VOB files are what a DVD stores in its VIDEO_TS folder: MPEG-2 video, audio and bitmap subtitle tracks, split into pieces of at most 1 GB. A film is usually spread over several numbered VOBs, which have to be joined to be watched as one.

Opens in DVD players, VLC and many desktop players; not phones or browsers

VOB converter
MKV

Matroska video

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 converter
VOB compared with MKV
VOBDVD videoMKVMatroska video
Stands forDVD Video ObjectMatroska
TypeVideo containerVideo container
CompressionLossy (MPEG-2)Depends on what is inside
Usually containsMPEG-2 video with AC3, DTS or PCM audio and bitmap subtitlesAlmost anything: H.264, HEVC, AV1, several audio and subtitle tracks
Introduced1996, by the DVD Forum2002, by the Matroska project
Opens inDVD players, VLC and many desktop players; not phones or browsersVLC, Plex and many TVs; not iPhones, QuickTime or most browsers
Best forRipping and archiving DVDsFilms with several audio and subtitle tracks
File extension.vob.mkv

Questions

Are my videos uploaded anywhere?

No. The VOB to MKV conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Does converting VOB to MKV reduce quality?

It depends on what is inside the VOB. When its video and audio are already in a form MKV can hold, they can be carried over without being compressed again. Otherwise they are re-encoded, which costs a little quality. Under Options you can favour quality or a smaller file.

Can I convert several VOB files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert VOB to MKV on Windows, Mac, iPhone or Android?

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 VOB file, press Convert and save the MKV. There is nothing to install.

Is there a file size limit?

Yes. VOB to MKV runs on the compatibility engine, which takes files up to 1 GB, and a long clip takes a while because it is slower than the browser's built-in codecs. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.