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WebM to MTS - Online Video Converter
Convert WebM to MTS online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert WebM to MTS
Drop WebM video here or click to select
WebM
MTS (H.264 / AAC)
About WebM to MTS
Convert WebM to MTS. WebM pairs VP9 video with Opus audio and supports an alpha channel. MTS is the AVCHD camcorder wrapper for H.264 on flash media. Spanned clips split at 4 GB; join them before converting..
Why convert WebM to MTS?
- Smaller files with MTS lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
WebM vs MTS
| Animation | Yes | Yes |
|---|---|---|
| Transparency | Yes | No |
| Compression | lossy | lossy |
| Typical use | WebM pairs VP9 video with Opus audio and supports an alpha channel. | MTS is the AVCHD camcorder wrapper for H.264 on flash media. |
When not to convert WebM to MTS
- Skip MTS for archival masters: lossy compression discards detail, so keep the WebM original.
- Flatten transparency first: MTS has no alpha channel, so composite WebM over a background color.
Limits
Starting point: WebM - VP9 video with Opus audio and alpha support. Apple editors accept it unevenly; keep MP4 for editing round-trips. Spanned clips split at 4 GB; join them before converting. Encode MTS (H.264 / AAC) from WebM at a bitrate near the source, and confirm the audio track before converting.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert WebM to MTS?
Drop your WebM file onto this page, choose quality and codec settings, then click Convert. The result downloads as MTS instantly. All processing runs in your browser.
What codec is used for MTS?
The default codec for MTS is H.264 / AAC. You can change the video and audio codec in Advanced mode.
How do you store my files?
We do not store any processed videos. All conversion happens entirely in your browser using FFmpeg WASM.