M2TS → Gmail / Email
Compress M2TS for Gmail / Email
Compressing M2TS for Gmail / Email comes down to three constraints: Gmail / Email's 25 MB cap, its 1280:720 resolution ceiling, and the need to output MP4 H.264 for reliable inline playback. M2TS source files are typically 1080p at around 100 MB per minute — 77% over Gmail / Email's 23 MB target. We calculate a per-clip bitrate budget from your duration, subtract 128 kbps for audio, and allocate the remainder to H.264 video at the highest quality that fits. MP4 source retains its H.264 stream without re-containerization work — we simply recompute the bitrate. Gmail / Email accepts M2TS inline, so the work here is purely bitrate reduction.
Where do you want to share your video?
How to compress M2TS for Gmail / Email
- 1Drag your .m2ts file onto the upload zone above (or browse to it).
- 2Gmail / Email is already selected. We'll target 23 MB to stay safely under the 25 MB cap.
- 3Optionally trim to a highlight clip in the review screen.
- 4Download the compressed MP4 and share it on Gmail / Email. Compression runs entirely in your browser, the source file never left your device.
What to know about M2TS → Gmail / Email
- MP4 source retains its H.264 stream without re-containerization work — we simply recompute the bitrate.
- Resolution is downscaled to fit 1280p for clean output at the required bitrate.
- Trim to the highlight before you compress — every 10 seconds you cut gives remaining frames more bitrate to work with.
- Gmail / Email's 23 MB target leaves a 5% safety margin below its 25 MB hard cap, so platform-side rejection is never an issue.
The compression math
A 1-minute M2TS at 1080p = ~100 MB. Gmail / Email's 23 MB target minus 128 kbps audio = ~3087 kbps video budget. H.264 at that budget downscaled to fit 1280p for clean output at the required bitrate produces a file at the target size that plays inline on Gmail / Email.
About M2TS files
M2TS is the BDAV (Blu-ray Disc Audio/Visual) container — the format used by Blu-ray movies and AVCHD-era camcorders like the Sony HDR-CX series and Panasonic HC-V series. It's essentially MPEG-2 Transport Stream with an extra 4-byte timestamp header per packet for precise frame timing. Modern phones, web browsers, and social platforms universally reject M2TS; even desktop players often fail without VLC. CompressYourVideo compresses and transcodes M2TS to MP4 H.264 + AAC, producing a file that plays inline on any device. Especially useful for archivists converting old Blu-ray rips or camcorder tapes to shareable modern files, and for anyone who has an AVCHD camera and wants to share clips on WhatsApp or Instagram.
About Gmail / Email
Compress videos to send by email. Gmail limits attachments to 25MB and most email services cap at 20-25MB. Our tool fits your video within these limits.
Related compression tools
Or compress M2TS for a different platform