Convert any video file to M4V format online for free. Fast, secure, and easy-to-use video to M4V converter with no software installation required.
or click below to browse
Max file size: 50 MBMax duration: 30 min
Sign up for increased limitsA free account gets you up to 50 MB and 30 min.
Drag and drop your MTS file, or click to browse for it.
Choose M4V as the output and click Convert. The conversion runs on our servers, so your device does none of the work.
Download your converted file instantly. The download link expires in 1 hour for security.
Our powerful servers process your files quickly, delivering converted files in seconds.
Convert your files completely free with no hidden costs or subscription fees.
Your file is used only to make your conversion. It is never published or shared, and the download link expires after one hour.
Works directly in your web browser. No software download or installation required.
How the two formats differ on the things that change your result.
| Specification | MTS (source) | M4V (result) |
|---|---|---|
| Container | AVCHD | MPEG-4 (Apple variant) |
| Developed by | Sony / Panasonic | Apple |
| Introduced | 2006 | 2005 |
| Video codecs | H.264 | H.264 |
| Audio codecs | AC-3, LPCM | AAC, AC-3 |
| Max resolution | Full HD (1080p) | 4K UHD |
| Typical bitrate (1080p) | 17–28 Mbps | 4–20 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: macOS, iOS · Needs a player: Web browsers, Windows, Android, Smart TVs |
| Best for | camera footage, camcorder transfers, video editing | the Apple ecosystem, iTunes libraries, home theatre |
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: M4V is streaming-friendly, so the converted file begins playing while it is still downloading.
This conversion buys reach. Unlike MTS, M4V is natively supported on macOS and iOS, which is usually the reason people convert in this direction.
Expect the bitrate to move from roughly 23 Mbps to about 12 Mbps at 1080p, and file size to follow.
Converting MTS to M4V moves the video from the AVCHD container, introduced in 2006, into MPEG-4 (Apple variant), which arrived in 2005. Whether the picture is re-encoded or copied across depends on the codecs both containers accept.
Developed by Sony / Panasonic in 2006, MTS carries H.264 video and AC-3 or LPCM audio. That combination sets the upper bound on what any conversion can preserve.
M4V was introduced by Apple in 2005. It carries H.264 video with AAC or AC-3 audio and plays natively on macOS and iOS.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
Quick access to the most commonly used file conversions
And many more format conversions supported