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WebM to M2TS converter, without the upload.

Turn WebM videos into M2TS. It is converted in your browser, so the file never leaves your device.

Drop WebM files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert WebM to M2TS

  1. Add your WebM videos

    Drop WebM files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. M2TS is already chosen

    Press Convert. Open Options first if you want to change the defaults. The work happens in this tab and can take a while for large files.

  3. Download

    Save the M2TS, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The WebM to M2TS converter is part of this page and runs inside your browser. Your videos are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so work starts the moment you press Convert. How long it takes depends on your device and the size of the file.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

WebM to M2TS: what to expect

WebM does not play on many phones, TVs or in most video editors. M2TS is what Blu-ray authoring tools and AVCHD-compatible players expect. WebM is at home in royalty-free video on websites; M2TS is the usual choice for blu-ray discs and AVCHD camcorder footage.

The defaults suit most files. Under Options you can lower the resolution, trade quality against file size, remove the sound and trim the start and end. This is demanding work for a browser: a long or high-resolution file can take several minutes, and your device does all of it, so keep the tab open.

This pair uses the compatibility engine, ffmpeg built for the browser, because M2TS cannot be written by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB.

WebM vs M2TS

WEBM

WebM video

WebM is an open, royalty-free video format built for the web. It is a restricted form of Matroska holding VP8, VP9 or AV1 video. Browsers play it; iPhones, TVs and video editors often do not.

Opens in Chrome, Firefox, Edge and recent Safari; few TVs and editors

WebM converter
M2TS

Blu-ray / AVCHD video

M2TS is the transport stream container of Blu-ray discs and of AVCHD camcorders from Sony and Panasonic, which write the same files with an .mts extension. The files are large because the bitrate is high.

Opens in VLC, many TVs and media players; most phones, browsers and editors need it converted

M2TS converter
WebM compared with M2TS
WEBMWebM videoM2TSBlu-ray / AVCHD video
Stands forWebMBDAV MPEG-2 Transport Stream
TypeVideo containerVideo container
CompressionLossyLossy
Usually containsVP8, VP9 or AV1 video with Vorbis or Opus audioH.264, VC-1 or MPEG-2 video with AC3, DTS or PCM audio
Introduced2010, by GoogleThe mid-2000s, by the Blu-ray Disc Association
Opens inChrome, Firefox, Edge and recent Safari; few TVs and editorsVLC, many TVs and media players; most phones, browsers and editors need it converted
Best forRoyalty-free video on websitesBlu-ray discs and AVCHD camcorder footage
File extension.webm.m2ts, .mts

Questions

Are my videos uploaded anywhere?

No. The WebM to M2TS conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Does converting WebM to M2TS reduce quality?

It depends on what is inside the WebM. When its video and audio are already in a form M2TS can hold, they can be carried over without being compressed again. Otherwise they are re-encoded, which costs a little quality. Under Options you can favour quality or a smaller file.

Can I convert several WebM files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert WebM to M2TS on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the WebM file, press Convert and save the M2TS. There is nothing to install.

Is there a file size limit?

Yes. WebM to M2TS runs on the compatibility engine, which takes files up to 1 GB, and a long clip takes a while because it is slower than the browser's built-in codecs. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.