Convert M2TS to MKV

M2TS to MKV converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

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All file types supported

About formats

M2TS

M2TS is a variant of the MPEG-2 Transport Stream used for Blu-ray Disc BDMV video and high-definition AVCHD recordings. M2TS files store H.264, MPEG-2 or VC-1 video together with high-resolution audio and are recognized by VLC, MPC-HC, and Blu-ray authoring tools.

Developer: Blu-ray Disc Association
Initial release: 2006
Compression: Lossy
Color depth: up to 12-bit
Transparency: No
Animation: Yes

Best for

Blu-ray BDMV video authoring
AVCHD high-definition recordings
Archiving Blu-ray movie files
Storing VC-1 or MPEG-2 video
High-quality home-theater content

Pros

+Standard for Blu-ray Disc video
+Supports H.264, MPEG-2, and VC-1
+Carries high-resolution audio
+Recognized by VLC and Blu-ray tools

Cons

−Large files for high-definition content
−Blu-ray authoring tools required for full use
−Less common for web delivery
−Complex structure for casual use

MKV

MKV (Matroska Video) is an open standard, royalty-free multimedia container that can hold an unlimited number of video, audio, subtitle and metadata tracks in a single file. Matroska is popular for high-definition content, anime, and movie archives because it preserves multiple language tracks and subtitle streams. MKV is supported by VLC, MPC-HC and most modern smart TVs.

Developer: Matroska Org
Initial release: 2002
Compression: Lossy or lossless
Color depth: up to 12-bit HDR
Transparency: No
Animation: Yes

Best for

Archiving HD movies with multiple tracks
Storing multiple subtitle languages
Anime and foreign film distribution
Preserving multiple audio streams
High-quality video libraries

Pros

+Open standard and royalty-free
+Holds unlimited video, audio, and subtitle tracks
+Supports lossless and lossy codecs
+Wide support in VLC and smart TVs

Cons

−Not universally supported on mobile devices
−Slightly larger overhead than streamlined containers
−Less ideal for web streaming than MP4

How to convert M2TS to MKV

1
Select M2TS files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose mkv — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your mkv file right away.

M2TS vs MKV

Property	M2TS	MKV
Compression	Lossy	Lossy or lossless
Color depth	up to 12-bit	up to 12-bit HDR
Multi-track	Yes	Yes
DRM support	No	No
Open format	No	Yes

When to use M2TS vs MKV

M2TS

Blu-ray BDMV video authoring
AVCHD high-definition recordings
Archiving Blu-ray movie files
Storing VC-1 or MPEG-2 video
High-quality home-theater content

MKV

Archiving HD movies with multiple tracks
Storing multiple subtitle languages
Anime and foreign film distribution
Preserving multiple audio streams
High-quality video libraries

Use cases for M2TS → MKV

Blu-ray BDMV video authoring
AVCHD high-definition recordings
Archiving Blu-ray movie files
Storing VC-1 or MPEG-2 video
High-quality home-theater content
Archiving HD movies with multiple tracks
Storing multiple subtitle languages
Anime and foreign film distribution
Preserving multiple audio streams
High-quality video libraries

Frequently Asked Questions

Is converting M2TS to MKV free?

Yes. This M2TS → MKV converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert M2TS to MKV?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my M2TS files uploaded to a server?

No. Files never leave your device. The entire M2TS → MKV conversion runs locally in your browser, so your data stays private.

Can I convert multiple M2TS files at once?

Yes — batch conversion is supported. Add as many M2TS files as you like and convert them to MKV in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting M2TS to MKV reduce the quality?

Because both formats use lossy compression, the MKV output will not bring back any quality that has already been lost in your M2TS file. Avoid repeated re-encoding to keep the best quality.

Does MKV support transparency?

No — MKV has no alpha channel. Transparent areas of your M2TS file will be filled with a solid background colour in the converted file.

How will the file size change after converting M2TS to MKV?

Both formats use comparable compression, so the MKV output will be similar in size to your M2TS file — typically within 10–20% of each other.

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FREE

100% Free

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SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

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