M2T carries MPEG-2 video in the transport stream used by HD camcorders and broadcast. Transport-stream data is chopped into fixed 188-byte packets so interleaved programmes survive the dropouts of broadcast and tape. AVCHD camcorders adapted the format by prefixing each packet with a 4-byte timestamp header, the 192-byte-packet variant usually seen as M2TS. The same MPEG-2 transport stream carries digital TV over DVB and ATSC, so an .m2t capture is essentially what comes off the air.

How do I open a .M2T file?

Drop a .M2T file onto Analyser at https://analyser.valjdakosta.com/ and it is identified directly in your browser - no upload, no account and no software to install. Inspect streaming manifests and video containers: HLS/DASH/Smooth Streaming/HDS manifests and playlists; pro/broadcast MXF/GXF/LXF/DV; ASF/.dvr-ms and RealMedia; DivX/F4V/Insta360/GoPro proxies/GIFV; raw elementary streams (IVF, Y4M, MPEG-1/2, H.264/H.265 SPS, AV1 OBU); MPEG program/transport and PVR/DVB recordings; Windows Recorded TV, Ogg Media, NUT; DPX/Cineon/Dahua/.yuv identified.

Can I open a .M2T file online for free?

Yes. Analyser is a free online .M2T identifier that runs entirely in your browser - your .M2T file never leaves your device, so there is nothing to upload and no software to install. It even works offline once installed.

.M2T file - what it is and how to identify it online

Analyse a .M2T file

Home › Formats › .M2TID

What is a .M2T file?

M2T carries MPEG-2 video in the transport stream used by HD camcorders and broadcast.

Did you know: Transport-stream data is chopped into fixed 188-byte packets so interleaved programmes survive the dropouts of broadcast and tape.
AVCHD camcorders adapted the format by prefixing each packet with a 4-byte timestamp header, the 192-byte-packet variant usually seen as M2TS.
The same MPEG-2 transport stream carries digital TV over DVB and ATSC, so an .m2t capture is essentially what comes off the air.
What Analyser reads: Inspect streaming manifests and video containers: HLS/DASH/Smooth Streaming/HDS manifests and playlists; pro/broadcast MXF/GXF/LXF/DV; ASF/.dvr-ms and RealMedia; DivX/F4V/Insta360/GoPro proxies/GIFV; raw elementary streams (IVF, Y4M, MPEG-1/2, H.264/H.265 SPS, AV1 OBU); MPEG program/transport and PVR/DVB recordings; Windows Recorded TV, Ogg Media, NUT; DPX/Cineon/Dahua/.yuv identified.
Depth of analysis: .M2T is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
Open a .M2T file: Drag a .M2T file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
Related formats: .M3U8 · .M3U · .MPD · .ISM · .ISMC · .F4M · .ASX · .WPL · .XSPF · .PLS · .MXF · .GXF · .LXF · .DV · .DIF · .ASF · .DVR-MS · .RM and more. See all supported file types.