Convert MPEG-2 Transport Stream (.m2ts) to WebM Video (.webm) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .m2ts file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .webm file when it's ready.
M2TS from Blu-ray carries H.264/H.265 video at 20-50 Mbps with AC3/DTS multi-channel audio. WebM is Google's open-source web video format using VP9 video and Opus audio in a Matroska-based container. VP9 delivers compression efficiency comparable to or exceeding H.265 while being completely royalty-free. Converting M2TS to WebM produces modern, efficient, open-source web video from the highest-quality consumer video sources.
WebM is the premium open-source alternative to MP4 for web video delivery. VP9 produces files 30-50% smaller than H.264 at the same quality, directly reducing bandwidth costs for video hosting. All major browsers (Chrome, Firefox, Edge, Opera, Safari 14.1+) support WebM natively. For video platforms, CDNs, and self-hosted video, WebM offers the best quality-per-byte of any widely supported format.
FFmpeg demuxes the M2TS and re-encodes using libvpx-vp9 for video and libopus for audio. VP9 encoding typically uses two-pass mode with a CRF target (31-35) and constrained bitrate for optimal quality distribution. Audio is transcoded from AC3/DTS to Opus at 128-192 kbps stereo — Opus is the best lossy audio codec available, surpassing AAC and Vorbis at all bitrates. The WebM container uses Matroska framing with WebM-specific restrictions (only VP8/VP9/AV1 video and Vorbis/Opus audio).
VP9 at CRF 31 with a 4 Mbps target for 1080p delivers excellent quality — comparable to H.264 at 6-8 Mbps. Opus at 128 kbps stereo outperforms AAC at the same bitrate. The combination produces web video that looks and sounds as good as much larger MP4 files. From a 20+ Mbps Blu-ray M2TS source, the VP9 output at 4-6 Mbps preserves virtually all perceptible quality.
| Device | M2TS | WebM |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
M2TS to WebM conversion produces the most efficient, open-source web video from Blu-ray and camcorder sources. VP9/Opus delivers outstanding quality at reduced file sizes compared to H.264/AAC.
Biztonsagos atvitel
HTTPS titkositott feltoltes
Adatvedelmi prioritas
A fajlok feldolgozas utan automatikusan torlodnek
Regisztracio nem szukseges
Azonnal kezdhet konvertalni
Mindenhol mukodik
| Native |
8MB free, 50MB Nitro
Barmely bongeszo, barmely eszkoz
| Jellemzo | M2TS | WebM |
|---|---|---|
| Teljes nev | Blu-ray BDAV MPEG-2 Transport Stream | WebM Video |
| Kiterjesztes | .m2ts | .webm |
| Leginkabb ajanlott | Blu-ray format | Web optimized |