MP4
MP4 video
MP4 is the video container everything plays. It normally holds H.264 video and AAC audio, a pairing that phones, browsers, TVs and social networks all accept.
Opens in Every phone, browser, TV, console and editor
MP4 converterMP4 to M2TS converter, without the upload.
Turn MP4 videos into M2TS. It is converted in your browser, so the file never leaves your device.
Drop MP4 files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Convert to
- On your device · nothing is uploaded
- No account, no email
- Batch and ZIP download
- Free
- M2TS: Blu-ray / AVCHD
How to convert MP4 to M2TS
Add your MP4 videos
Drop MP4 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.
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.
Download
Save the M2TS, or download everything as one ZIP if you converted several files.
Why ToAny
Private by construction
The MP4 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.
MP4 to M2TS: what to expect
MP4 is a delivery format: other tools sometimes need audio only, a GIF, or a different container. M2TS is what Blu-ray authoring tools and AVCHD-compatible players expect. MP4 is at home in sharing and uploading video anywhere; 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.
MP4 vs M2TS
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| MP4MP4 video | M2TSBlu-ray / AVCHD video | |
|---|---|---|
| Stands for | MPEG-4 Part 14 | BDAV MPEG-2 Transport Stream |
| Type | Video container | Video container |
| Compression | Lossy | Lossy |
| Usually contains | H.264 or H.265 video with AAC audio | H.264, VC-1 or MPEG-2 video with AC3, DTS or PCM audio |
| Introduced | 2001, by the Moving Picture Experts Group | The mid-2000s, by the Blu-ray Disc Association |
| Opens in | Every phone, browser, TV, console and editor | VLC, many TVs and media players; most phones, browsers and editors need it converted |
| Best for | Sharing and uploading video anywhere | Blu-ray discs and AVCHD camcorder footage |
| File extension | .mp4 | .m2ts, .mts |
Questions
Are my videos uploaded anywhere?
No. The MP4 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 MP4 to M2TS reduce quality?
It depends on what is inside the MP4. 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 MP4 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 MP4 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 MP4 file, press Convert and save the M2TS. There is nothing to install.
Is there a file size limit?
Yes. MP4 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.