Convert WebM to MOV

How it works

1. 1

   Add your WEBM file

   Drop, pick, or paste it. It stays on your device.

2. 2

   Convert

   We re-encode it to MOV right here in your browser.

3. 3

   Download

   Save the MOV file.

Getting a web download into an Apple timeline

WebM and Apple software have never got along. Final Cut will not import one, iMovie will not either, and QuickTime declines to open it, so a clip you saved from a browser can be completely unusable on a Mac despite playing perfectly in the tab it came from.

The conversion is a real one. WebM carries VP9 or AV1 with Opus audio, none of which a MOV can hold, so every frame is decoded and re-encoded as H.264 with AAC. That takes time, and it costs a generation of quality, but it is the only route into an Apple editing workflow.

Since you are re-encoding anyway, it is worth doing this once and keeping the MOV, rather than converting the same WebM repeatedly. Each round trip through a lossy codec takes a little more off, and there is no reason to pay that toll twice.

Why nothing uploads

Other tools send your video to their servers, which costs them money per file, so they add watermarks, cap file sizes, and make you sign up. This tool does the work right here in your browser using your own device. Your file is never uploaded, so there is no wait, no watermark, no size limit, and no account.

Questions

Why will Final Cut not import my WebM?

Apple has never supported the codecs WebM uses. The file is fine; the software simply refuses the format.

Would an MP4 work just as well?

In most cases yes, and Apple editors accept H.264 in an MP4 quite happily. Choose MOV if your project or your workflow specifically expects it.

Does quality drop?

A little, since this is a genuine re-encode rather than a rewrap. At the settings used here it is hard to see, but do not convert back and forth repeatedly.

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