M2TS Converter
FileFlip converts M2TS files into 30 other formats entirely inside your browser, using FFmpeg and WebCodecs compiled to WebAssembly. The M2TS file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert an M2TS file?#
- Drop your M2TS file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert M2TS files online?#
Yes, because nothing is uploaded. FileFlip converts M2TS files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What happens to a M2TS file#
FileFlip converts M2TS into 30 formats with FFmpeg and WebCodecs, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | Video Files |
|---|---|
| File extension | .m2ts |
| FileFlip support | Read and written |
| Conversions available | 30 |
| Engines | FFmpeg and WebCodecs |
| Downloaded to your browser | 30.8 MB on the first conversion, then cached |
What is an M2TS file?#
An M2TS file holds a BDAV MPEG-2 transport stream, the timestamped variant of MPEG-TS that Blu-ray Disc authoring software writes into a disc's BDMV/STREAM folder.
Keep footage as M2TS while it's still part of a Blu-ray authoring or playback pipeline that expects that exact stream structure.
Convert M2TS to MP4 or MKV once the goal is normal playback or editing outside of Blu-ray software, since both drop the disc-specific overhead while keeping the same video and audio.
The M2TS file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
M2TS questions people ask#
What produces an M2TS file?
M2TS files come from Blu-ray Disc authoring software, from ripping or ejecting a Blu-ray's BDMV/STREAM folder, and from professional camcorders that record straight to the Blu-ray-compatible format. Any tool built around the Blu-ray Disc Association's BDAV structure writes this extension.
Why won't my M2TS file play?
Most general media players struggle with M2TS because it expects the surrounding disc structure or a codec the player doesn't have, particularly for VC-1 or high-bitrate H.264 video. VLC decodes M2TS directly without needing the rest of the disc, so it's the most reliable first thing to try.
What's the difference between M2TS and MTS?
They're the same BDAV MPEG-2 transport stream underneath. M2TS is the extension Blu-ray Disc authoring software and players use for the STREAM folder on a disc, while MTS is the extension the AVCHD camcorder standard assigns to the identical stream structure when it's recorded onto a memory card instead of a disc.
What should I convert an M2TS file to?
Convert M2TS to MP4 for general playback and sharing, or to MKV if the goal is to keep every audio track and subtitle stream a Blu-ray rip contains. Either drops the disc-specific packet overhead without touching the underlying video quality.