Free M4V to MP4 converter

Why convert M4V to MP4?

People convert M4V to MP4 because M4V is Apple’s MP4 variant, and some players refuse it on sight because of the extension alone, while MP4 with H.264 plays on phones, TVs, browsers and every video editor.

How to convert M4V to MP4

1. Choose your M4V file. Drop it on the box above, or tap to browse. You can pick several files at once.
2. Confirm the target is .mp4. It is preselected when your browser can encode it; otherwise the closest available target is chosen. Adjust quality, size or the other options if you want to.
3. Convert and download. Press Convert, then Download. Your file stays on your device the whole time.

What is a .m4v file?

M4V is Apple's variant of MP4, used by the iTunes Store and sometimes carrying copy protection. An unprotected M4V is effectively an MP4 and converting it is mostly a matter of relabelling the container.

What is a .mp4 file?

MP4 carrying H.264 video and AAC audio is the one video format that plays essentially everywhere — phones, televisions, browsers, editing software and every messaging app. When something refuses to play a video, converting it to MP4 is almost always the fix.

What to expect from this conversion

Every frame is decoded and re-encoded inside your browser, so a long clip takes a while and the tab must stay open. Setting a width of 1280 gives a much smaller file that still looks sharp on a phone.

Is it private?

Yes, by design. Every conversion happens inside your own browser using your device’s processor — there is no server that receives your M4V file, so there is nothing for anyone to store, scan or leak. You can confirm it yourself: open your browser’s developer tools, watch the Network tab while you convert, and you will see no upload.

Questions about M4V to MP4

Is this M4V to MP4 converter free?

Yes, completely. There is no account, no daily limit, no watermark and no premium tier.

Is my M4V file uploaded to a server?

No. The conversion runs inside your own browser using your device's processor. The file is read from your disk, converted in memory and saved back to your disk — nothing is transmitted, so there is nothing for anyone to store.

Can I convert M4V to MP4 online without downloading software?

Yes. This is an online M4V to MP4 converter that runs in your browser, so there is nothing to install and no app to trust with your files. It works the same on a phone.

Does converting M4V to MP4 lose quality?

Every frame is decoded and re-encoded inside your browser, so a long clip takes a while and the tab must stay open. Setting a width of 1280 gives a much smaller file that still looks sharp on a phone.

How do I convert M4V to MP4 on Windows, Mac or Linux?

The same way on all three: open this page in Chrome, Edge, Firefox or Safari, drop the M4V file, press Convert and download the MP4. Nothing is installed and no admin permission is needed.

Can I convert several M4V files at once?

Yes. Select as many files as you like and they are converted one after another in a single tap, with a download for each and a zip of all of them.

Can I convert M4V to MP4 without FFmpeg or a script?

Yes — that is what this page is for. FFmpeg does the same job well if you already have it set up and thousands of files to process; for one file, or a handful, the browser is faster than installing anything.

Should I keep the original M4V file?

Yes — keep it, converting never touches it. The reason to make a copy in another format is that M4V is Apple’s MP4 variant, and some players refuse it on sight because of the extension alone.

How long does it take?

Roughly as long as the clip itself for high-definition video, because every frame is decoded and re-encoded on your own machine. Keep the tab in the foreground while it works.

Related conversions

See all 399 conversions · Read the guides