Convert MTS to WEBM
MTS is great for HD camcorder footage, but WEBM is the better choice for web video, HTML5 players and screen recordings. Convert MTS to WEBM in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert MTS to WEBM
- 1
Tap Choose files and select one or more MTS files (or drag them in).
- 2
Check that WEBM is selected. Use Advanced options for resolution, size or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your WEBM downloads automatically. Converting several files? Grab them all as a ZIP.
MTS vs WEBM
Both formats are lossy, so the video is re-encoded once. Pick High quality to keep it as close to the original as possible, or Small for the smallest file.
| MTS | WEBM | |
|---|---|---|
| Full name | AVCHD Video | WebM Video |
| Type | Video | Video |
| Compression | Lossy | Lossy |
| Developed by | Sony & Panasonic | |
| Introduced | 2006 | 2010 |
| Plays on iPhone | ✕ No | ◐ Partly / with an app |
| Plays on Android | ✕ No | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ◐ Partly / with an app | ◐ Partly / with an app |
About MTS and WEBM
MTS: MTS/M2TS files come from Sony, Panasonic and Canon HD camcorders (AVCHD). They are high quality but hard to play on phones.
WEBM: WebM is Google's open video format using VP8/VP9 and Opus. It is built for the web and is what screen recorders and browsers produce.
Frequently asked questions
How do I convert MTS to WEBM on my phone?
Will converting MTS to WEBM reduce quality?
Is this MTS to WEBM converter free?
Are my files uploaded to a server?
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