Convert MTS to MKV

MTS 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

MTS

MTS is the file extension used for MPEG-2 Transport Stream files recorded by AVCHD camcorders. MTS files contain H.264 video and AC-3 or PCM audio and are commonly produced by Sony, Panasonic, and other consumer camcorders.

Developer: Sony / Panasonic
Initial release: 2006
Compression: Lossy
Color depth: up to 12-bit
Transparency: No
Animation: Yes

Best for

AVCHD camcorder file playback
Editing Sony and Panasonic footage
Archiving consumer HD recordings
Converting camcorder video to MP4
High-definition home video storage

Pros

+Standard AVCHD camcorder output
+Contains H.264 video and AC-3/PCM audio
+Good HD quality in compact files
+Recognized by VLC and editing tools

Cons

−Tied to AVCHD folder conventions
−Less convenient than MP4 for sharing
−Limited metadata support
−Aging format for modern cameras

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 MTS to MKV

1
Select MTS 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.

MTS vs MKV

Property	MTS	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 MTS vs MKV

MTS

AVCHD camcorder file playback
Editing Sony and Panasonic footage
Archiving consumer HD recordings
Converting camcorder video to MP4
High-definition home video storage

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 MTS → MKV

AVCHD camcorder file playback
Editing Sony and Panasonic footage
Archiving consumer HD recordings
Converting camcorder video to MP4
High-definition home video storage
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 MTS to MKV free?

Yes. This MTS → 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 MTS 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 MTS files uploaded to a server?

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

Can I convert multiple MTS files at once?

Yes — batch conversion is supported. Add as many MTS 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 MTS 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 MTS file. Avoid repeated re-encoding to keep the best quality.

Does MKV support transparency?

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

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

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

Related Conversions

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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.

USER REVIEWS

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