How to Convert M4V to MP4 Online
Follow these three simple steps to convert M4V to MP4. No software installation required. Free and secure.
Select an M4V Video
Choose an unprotected M4V video from your device. DRM-protected media cannot be unlocked by format conversion.
Choose Video and Audio Settings
Keep the original resolution and frame rate or choose new values, then keep the automatic audio settings or select a sample rate and mono or stereo output.
Convert and Download
Start the conversion, review the original and output file sizes, and download the completed MP4 video.
How Does the M4V to MP4 Converter Work?
The CompressFly M4V to MP4 converter decodes a supported, unprotected M4V file and re-encodes its video as H.264 and available audio as AAC in an MP4 container. The process creates a new MP4 file and does not remove encryption or digital rights management.
Conversion runs directly in your browser. Your M4V video is not uploaded to a server, and the completed MP4 file downloads from the browser to your device.
What "directly in your browser" means
- Your M4V video is not uploaded to a server.
- Video conversion runs locally on your device.
- The completed MP4 video downloads directly from your browser.
When to Convert M4V to MP4
Convert an unprotected M4V file when a player, upload form, or delivery workflow explicitly expects the standard MP4 extension and container.
Meet an MP4 File Requirement
Create a standard MP4 output for software or an upload form that does not accept the M4V extension.
Share Unprotected M4V Video
Prepare a non-DRM M4V clip for a browser, messaging platform, or recipient that prefers MP4.
Create a Delivery Copy
Make an H.264 MP4 version while retaining the original M4V file as the source copy.
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M4V to MP4 Converter FAQ
How do I convert M4V to MP4 online?
Use this online M4V to MP4 converter in three steps: 1. Select an M4V video from your device. 2. Keep or change the available video and audio settings. 3. Start the conversion and download the completed MP4 video.
What happens when I convert M4V to MP4?
A supported M4V file is decoded and re-encoded as H.264 video with available AAC audio inside a new MP4 container.
Can I change the video resolution and frame rate?
Yes. Keep the source resolution and frame rate or select an available output resolution and frame rate before conversion.
Will converting M4V to MP4 make the file smaller?
Not necessarily. The output size depends on the source video, selected resolution, frame rate, audio settings, duration, and visual content. Use the Video Compressor when reducing file size is the main goal.
Is the M4V to MP4 converter free?
Yes. Convert M4V to MP4 for free with no registration or credit card required.
Is there a file size limit, and is my video uploaded?
Your video is processed locally in your browser and is not uploaded to a server, so there is no server upload limit. The practical limit depends on your device's available memory and processing power, as well as the video's duration and resolution.