Convert MOV to WebM

Drag your MOV files here

Or

Export a MOV from After Effects, Premiere, Final Cut or your phone and convert it straight to web-ready WebM. If your MOV has an alpha channel (ProRes 4444, Animation/QTRLE), the transparency is carried through to VP9 WebM.

How to convert MOV to WebM

  1. Add your MOV filesDrag them onto the drop zone above, or click to browse. Add as many as you like — they stay on your computer.
  2. Tune the settingsSet quality, frame rate and scale. Leave Transparency on to keep any alpha channel.
  3. Convert and downloadClick Convert. Each finished WebM file gets its own download button, or grab everything with Download all.

MOV to WebM for motion graphics

MOV masters from editing apps are huge — often hundreds of megabytes for a few seconds of ProRes. WebM shrinks them to a size a website can actually stream, while keeping the transparency needed for overlays, animated logos and UI motion.

Transparent WebM plays in Chrome, Firefox and Edge. Safari ignores the alpha channel, so pair it with a fallback if you need transparency on Apple devices.

Frequently asked questions

Can I convert ProRes MOV to WebM?

Yes. ProRes 422 and ProRes 4444 MOVs are decoded in the browser. ProRes 4444 with alpha becomes transparent WebM when the Transparency switch is on.

Why does my transparent WebM look solid in Safari?

Safari and QuickTime do not render VP9 alpha. Check the file in Chrome, Firefox or Edge — the transparency is there.

Why is transparent WebM slower to render?

VP9 encodes the colour and alpha as two streams. Running the optional native helper on your Mac or PC speeds this up dramatically.

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