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Convert TS to MKV

Ethical Tube's free TS to MKV converter turns TS videos into MKV, a flexible container for video with several audio and subtitle tracks. It runs entirely in your browser, so your videos are never uploaded, and it's free with no sign-up or watermark.

Files are converted on your device and never uploaded.

Price
Free
Uploads
None, it runs on your device
Sign-up
Not needed
Batch
Unlimited files
Output
MKV, original codecs kept
Install
Nothing to install

How it works

How to convert TS to MKV

  1. Add your TS files

    Drop TS files onto the converter, click to choose them, or paste from the clipboard. Add as many as you like.

  2. Check the settings

    MKV is already selected. Keep the original resolution or pick a smaller one, and choose a quality.

  3. Download your MKV videos

    Each file gets its own download button as soon as it's ready. Download all saves everything in one ZIP file.

The formats

TS and MKV at a glance

  • What is a TS file?

    TS (MPEG transport stream) is the format of TV broadcasts, HLS video streams, and recordings from some camcorders and TV tuners. It's designed to survive transmission errors, which adds overhead, and many editors and phones don't open it directly. It opens in VLC, mpv, Plex, Kodi, and some smart TVs. Most phone galleries and editors work better with MP4.

  • What is an MKV file?

    MKV (Matroska) is an open container that can hold almost any video and audio codec, plus several audio tracks and subtitles in one file. It's popular for films, TV recordings, and OBS recordings. Many phones, TVs, editors, and QuickTime can't play MKV, so it's often converted to MP4. It opens in VLC, mpv, Plex, Kodi, Windows Media Player on Windows 10 and 11, and many smart TVs. QuickTime, iMovie, and iPhone can't open it.

Good to know

What changes when you convert TS to MKV

  • MKV can hold almost any codec, so the video and audio are usually copied without re-encoding. That's lossless and takes seconds.
  • Only the main video and audio tracks are kept. Subtitles, chapters, and extra audio tracks aren't carried over.
  • Re-encoding uses your device's hardware video encoder when it has one, which is often faster than real time.
  • Copy-protected (DRM) files can't be converted.
  • Very long videos can run out of memory, especially on phones.

FAQ

Questions, answered

Is this TS to MKV converter free?

Yes. It's completely free, with no sign-up, no watermark, and no limit on how many files you convert. It costs Ethical Tube nothing to run, because the conversion happens on your own device rather than on a server.

Are my files uploaded anywhere?

No. The conversion runs inside your browser with Mediabunny and your browser's WebCodecs video encoders, so your files never leave your device. Once the page has loaded, it even works offline.

Does converting TS to MKV lose quality?

Not if the codecs already fit: then the video and audio are copied as they are, with no loss. When they have to be re-encoded, the default quality keeps the result visually close to the original. Pick a higher quality for footage you plan to edit.

How long does it take?

When the video can be copied without re-encoding, a few seconds. Otherwise it depends on the video's length and resolution and on your device. With a hardware encoder, a 10-minute 1080p video usually takes a few minutes on a laptop.

Can I convert several TS files at once?

Yes. Add as many as you like. They're converted one after another, and you can download each MKV file as soon as it's ready or all of them in one ZIP file.

Does it work on iPhone, Android, Mac, and Windows?

Yes. It works in current versions of Chrome, Edge, Safari, and Firefox. Phones handle short clips well, and long or 4K videos convert best on a computer.

What can open an MKV file?

VLC, mpv, Plex, Kodi, Windows Media Player on Windows 10 and 11, and many smart TVs. QuickTime, iMovie, and iPhone can't open it.

Is there a file size limit?

There's no upload limit because nothing is uploaded. The practical limit is your device's memory: everyday files are fine, and a computer can usually handle videos up to about 2 GB.

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