Convert MTS to MP4
Convert any video file to MP4 format online for free. Fast, secure, and easy-to-use video to MP4 converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Why Choose Scriptivox MTS to MP4 Converter?
Fast Conversion
Our powerful servers process your files quickly, delivering converted files in seconds.
100% Free
Convert your files completely free with no hidden costs or subscription fees.
Secure & Private
Your files are encrypted and automatically deleted after conversion. We never store or share your data.
No Installation
Works directly in your web browser. No software download or installation required.
How to Use MTS → MP4
Upload File
Drag and drop your MTS file or click to browse. Supports files up to 1GB.
Convert
Select MP4 as your output format and click convert. Our servers will process your file instantly.
Download
Download your converted file instantly. The download link expires in 1 hour for security.
MTS vs MP4: format comparison
How the two formats differ on the things that change your result.
| Specification | MTS (source) | MP4 (result) |
|---|---|---|
| Container | AVCHD | MPEG-4 Part 14 |
| Developed by | Sony / Panasonic | MPEG |
| Introduced | 2006 | 2003 |
| Video codecs | H.264 | H.264, H.265, AV1 |
| Audio codecs | AC-3, LPCM | AAC, MP3, ALAC |
| Max resolution | Full HD (1080p) | 8K UHD |
| Typical bitrate (1080p) | 17–28 Mbps | 5–20 Mbps |
| Multiple audio tracks | Yes | Yes |
| Subtitle tracks | Not supported | Embedded (soft) subtitles |
| Chapter markers | Yes | Yes |
| Streaming optimized | No | Yes |
| Licensing | Patent-licensed | Patent-licensed |
| Plays natively on | Needs a player: Windows, macOS, Android | Native: Web browsers, Windows, macOS, iOS, Android, Smart TVs |
| Best for | camera footage, camcorder transfers, video editing | web delivery, social media uploads, sharing with anyone |
What changes when you convert MTS to MP4
Both containers can carry H.264, so this conversion is largely a container change rather than a full re-encode. That keeps quality intact and makes it fast.
One practical gain here: MP4 is streaming-friendly, so the converted file begins playing while it is still downloading.
This conversion buys reach. MP4 is natively supported on 6 additional platforms compared with MTS, which is usually the reason people convert in this direction.
Expect the bitrate to move from roughly 23 Mbps to about 13 Mbps at 1080p, and file size to follow.
About MTS to MP4 Conversion
Converting MTS to MP4 means moving audio out of the AVCHD container, introduced in 2006, and into MPEG-4 Part 14, which arrived in 2003. The two were designed with different priorities, and that is what determines whether this conversion costs you quality, storage, or compatibility.
Developed by Sony / Panasonic in 2006, MTS stores audio using H.264. That codec choice sets the upper bound on what any conversion can preserve.
MP4, from MPEG and dating to 2003, uses H.264, H.265, AV1 and plays natively on 6 of the six platform categories we track. That combination is usually why people convert into it.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
MTS to MP4: common questions
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