Convert VOB to MKV
Turn your VOB file into an MKV that plays where you need it, right in your browser.
- Free to start
- In your browser
- Up to 1GB
How to convert VOB to MKV
Upload your VOB file
Drag and drop a VOB file to turn into MKV, or click to browse. Anything under 1GB, and nothing is installed.
Confirm MKV as the output
MKV is already selected, so there is nothing to configure. Switch to another format in the panel if VOB needs to go somewhere else.
Convert and download
We convert the VOB on our servers, usually in under a minute. Create a free account to download the MKV, or keep editing it in REQO.
Why convert VOB to MKV?
VOB files are what sit in the VIDEO_TS folder of a DVD: MPEG-2 video, AC-3 audio, and sometimes menus and subtitle streams, cut into roughly 1 GB pieces because the DVD spec said so.
The practical problem: Nothing modern plays VOB: not phones, not browsers, not social platforms. A single film arrives as several files that have to be handled one at a time. MPEG-2 needs several times the bitrate H.264 does for the same picture. Commercial DVDs are usually encrypted, and encrypted VOBs cannot be converted by any tool.
MKV solves that. Keeps multiple audio and subtitle tracks in one file.
Container
Typical codecs
Best for
Plays on
File size
| Feature | VOB | MKV |
|---|---|---|
| Container | DVD-Video object | Matroska |
| Typical codecs | MPEG-2 video, AC-3 or PCM audio | Almost anything: H.264, HEVC, AV1, VP9 |
| Best for | Ripping the contents of a DVD you own | Archiving with multiple audio and subtitle tracks |
| Plays on | DVD players and VLC | VLC and desktop players; rarely anywhere else |
| File size | About 1 GB per chunk, several per disc | Depends entirely on the codec inside |
VOB to MKV questions
Is the VOB to MKV converter free?
Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge and no watermark on the MKV itself beyond the free-plan badge.
Do I need to install any software?
No. The conversion runs on our servers and the whole flow happens in your browser, so it works the same on Windows, macOS, Linux, iPhone and Android. Nothing to install at either end. Where VOB plays: DVD players and VLC. Where the MKV you get back plays: VLC and desktop players; rarely anywhere else.
Does converting VOB to MKV reduce the quality?
Converting re-encodes the video, so it is not bit-for-bit identical. We encode at a high quality target, which keeps the result visually indistinguishable from the VOB on normal viewing. What changes is the container and the codec. MKV holds: Almost anything: H.264, HEVC, AV1, VP9. Converting the same file back and forth repeatedly will eventually show, so keep your original.
How large a file can I convert?
Anything under 1GB per upload, which is more footage in some formats than others. VOB: About 1 GB per chunk, several per disc. MKV coming back: Depends entirely on the codec inside. For anything bigger, trim or compress it first, both are free tools here.
Is my file kept private?
Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.
Other formats
Everything else you can do here.
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Convert VOB to MKV now
Free, in your browser, and the file stays open in a full video editor afterwards.