100% local
VIDEO

Convert M2TS
to MKV

Right-sized output for the use case.

Converting from M2TS to MKV aligns the file with the encoding choices the downstream pipeline expects. The result is a deliverable that fits naturally into the destination workflow.

— Drop area

WHY CONVERT

Why convert M2TS to MKV

01

Right-sized output for the use case

Converting from M2TS to MKV aligns the file with the encoding choices the downstream pipeline expects. The result is a deliverable that fits naturally into the destination workflow.

02

Acceptance by downstream tools

MKV is the format most receiving systems expect for this kind of content. Converting upstream avoids the rejection and silent re-encoding that often happen when M2TS reaches an unprepared pipeline.

03

Lower storage and bandwidth cost

MKV files are typically smaller than their M2TS counterparts, which reduces hosting, transfer, and storage costs at scale. The savings compound when serving the same content to many recipients.

— How to convert

M2TS to MKV in three steps.

  1. 01

    Open LocalConvert

    Visit this page on any modern browser — no install, no signup, no plugin.

  2. 02

    Drop or select your M2TS file

    Drag your M2TS into the drop area, or click to pick one from your device.

  3. 03

    Click Convert

    Conversion runs entirely in your browser. When it's done, your MKV file downloads to your device.

QUALITY & FIDELITY

Quality and fidelity

  • Lossy source to lossless target: existing artifacts are preserved but no new loss is added.
  • Metadata (EXIF/tags) is preserved where the source provides it.
Transparency M2TS ✗ MKV ✗
Color depth unknown any (container)
Metadata preserved ✓

FORMAT SPECS

Format specifications

M2TSMKV
Extensions.ts .m2ts .mts.mkv .mka .mks
MIME typesvideo/mp2tvideo/x-matroska
Introduced19952002
MaintainerISO/IEC (MPEG)Matroska / CELLAR (IETF)
Magic #471A 45 DF A3
SpecView spec ↗View spec ↗

COMPATIBILITY

Where these formats work

MKV

Windows
Native
macOS
App
iOS
App
Android
App
Chrome
—
Firefox
—
Safari
—
Edge
—

Why LocalConvert

How LocalConvert compares

CategoryLocalConvertCloud converters
PRIVACYFiles never leave your device. The whole pipeline runs in your browser via WebAssembly.Files travel to a remote server, sit in queue storage, and may be retained for analytics or moderation.
COSTFree, no signup, no daily quotas.Often free for small files; paid tiers for batch / large / commercial use.
LIMITSLimited only by your device's memory and CPU. Multi-GB raw footage OK on desktop.Typical 100 MB to 1 GB per-file caps, plus rate limits.
— The formats
From · M2TS

M2TS

M2TS is a file format supported by LocalConvert.

To · MKV

Matroska Video

An open, flexible container that can hold virtually any video, audio, and subtitle codec.

Typical uses
Movie archives, multi-language releases, home media.

— FAQ

Frequently asked.

Is M2TS to MKV conversion free?

Yes. LocalConvert is completely free, with no signup and no per-file or per-day limits.

Do my files get uploaded anywhere?

No. M2TS to MKV conversion happens entirely inside your browser using WebAssembly — your file never leaves your device.

What's the maximum file size?

There's no fixed cap — the practical limit is your device's available memory. Very large files may take longer or fail on low-RAM devices.

Does it work offline?

Yes — once the page has loaded, M2TS to MKV conversion works without an internet connection. Re-open the page once to cache it.

Will conversion preserve quality?

LocalConvert uses the industry-standard tools (FFmpeg, ImageMagick, Pandoc) — quality matches what professionals use on the command line. Lossy formats will still lose some quality on each re-encode.

— Related

Or convert these.

M2TS 3G2M2TS 3GPM2TS AACM2TS AC3M2TS AIFM2TS AIFC
Browse all conversions
REFERENCES

Format references

MKV

RELATED CONVERSIONS

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Last verified:

100% local conversion.

M2TS to MKV is processed in your browser with WebAssembly. No upload, no tracking, no limits. Your file never leaves your device.