How to use the MTS converter
- Choose a file. Drop an MTS file to convert it to something else, or any other video to convert it to MTS.
- Check "Convert to". The converter picks MP4 for MTS files and MTS for everything else; change it if you need something different.
- Adjust quality if you want a smaller or higher-quality file.
- Click Convert and download the result.
What is an MTS file?
MTS is the file format used by AVCHD camcorders from Sony, Panasonic and Canon. It holds H.264 video and AC3 sound in a Blu-ray-style transport stream.
MTS is mainly used for HD camcorder footage. It plays on VLC and some editors; phones, many TVs and web uploads do not accept MTS.
MTS at a glance
| Full name | AVCHD Video (BDAV MPEG-2 Transport Stream) |
|---|---|
| Type | Video |
| Created by | Sony and Panasonic, 2006 |
| Compression | Lossy |
| Typical codecs | H.264 + Dolby Digital (AC3) |
| Can be created here | Yes |
Pros and cons of MTS
Good
- High-quality HD camcorder video
Not so good
- AC3 sound is not supported by many phones and players
- Files are split into chunks on the camera
Common MTS problems and fixes
An MTS clip plays with no sound
The audio is AC3. Converting to MP4 turns it into AAC.
You need one file from several MTS clips
Convert each to MP4, then use the Video Merger.
Popular MTS conversions
Frequently asked questions
How do I open an MTS file?
MTS files play on VLC and some editors; phones, many TVs and web uploads do not accept MTS. If yours will not open, convert it to MP4 on this page; that format plays on any device.
How do I convert a file to MTS?
Drop any video on this page. "Convert to" is set to MTS automatically for files that are not MTS already.
Is the MTS converter free?
Yes, completely free, with no sign-up and no watermark. Files up to 1 GB each can be converted, and there is no daily limit.
Do you keep a copy of my files?
We never receive them. All processing happens on your device, so there is nothing for us to store or delete.
Is MTS lossy?
Yes, MTS normally uses lossy compression, which removes detail you are unlikely to notice to keep files small.