Are my MP4 files uploaded anywhere?

No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and convert something. You will see the page load, plus the analytics and advertising the site is paid for with — and nothing carrying your file.

Is converting MP4 to M4V free?

Yes. There is no account, no watermark and no limit on how many files you convert — it runs on your own machine, so it costs us nothing to let you. Files up to 100 MB are handled in the browser.

Does converting MP4 to M4V lose quality?

M4V is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. Video is re-encoded rather than copied, so some detail is lost even at the highest setting. Subtitle tracks and chapters are not carried over.

Do I need to install anything to open M4V files?

No installation is needed for the conversion itself — it runs in the browser you already have. Opening the M4V afterwards needs whatever software normally handles iTunes Video on your device.

MP4toM4V

Convert MP4 to M4V

Up to 100 files at once. Mixed formats are fine.

You can convert MP4 to M4V free and without an account: drop the file above and the M4V is ready to download in a second or two. The conversion happens inside your own browser, so the file is never uploaded — it works on Windows, Mac, Linux, iPhone and Android, and keeps working with the network switched off.

What MP4 and M4V are for

The video format that plays everywhere. If in doubt, this is the answer.

Apple's MP4 variant. Identical in practice unless the file carries copy protection.

How to convert MP4 to M4V

Drop your MP4 file onto this page, or click to pick one.
Choose M4V as the target. The conversion runs inside your browser — the file is never uploaded.
Download the finished M4V file.

MP4 vs M4V: what changes

MP4 compared with M4V
	MP4	M4V
Full name	MPEG-4 Video	iTunes Video
File extension	.mp4	.m4v
Media type	video/mp4	video/x-m4v
Compression	Lossy — file size is bought with quality	Lossy — file size is bought with quality

Quality: Some quality is given up for a smaller file. At the default setting the difference is hard to see.
Where it runs: This conversion runs inside your browser. Your file is never uploaded, and it works with the network disconnected.
What can be lost: Video is re-encoded rather than copied, so some detail is lost even at the highest setting. Subtitle tracks and chapters are not carried over.

MP4 to M4V: common questions

Are my MP4 files uploaded anywhere?: No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and convert something. You will see the page load, plus the analytics and advertising the site is paid for with — and nothing carrying your file.
Is converting MP4 to M4V free?: Yes. There is no account, no watermark and no limit on how many files you convert — it runs on your own machine, so it costs us nothing to let you. Files up to 100 MB are handled in the browser.
Does converting MP4 to M4V lose quality?: M4V is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. Video is re-encoded rather than copied, so some detail is lost even at the highest setting. Subtitle tracks and chapters are not carried over.
Do I need to install anything to open M4V files?: No installation is needed for the conversion itself — it runs in the browser you already have. Opening the M4V afterwards needs whatever software normally handles iTunes Video on your device.