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WebM to MOV

Convert a WebM video to a MOV that opens in QuickTime, iMovie, and Final Cut. Processing stays on your device.

Files stay on your device

Drop files to convert

See their format, then choose an output.

Any media file this browser’s engine can read. You can also drag in a folder. Several at once needs a free account.

How to convert WebM to MOV online

Open a WebM, such as a screen recording or a video saved from the web, and export a QuickTime MOV for a Mac or an Apple editor. Apple apps don’t play the VP9 and Opus inside most WebM files, so the WebM to MOV converter re-encodes them to H.264 and AAC in your browser, without uploading the file.

  1. Step 1

    Choose your WebM
    Pick a file or drop it into the converter above.

  2. Step 2

    Keep MOV
    MOV is selected; choose another format if you need one.

  3. Step 3

    Download the MOV
    Save the MOV when the conversion finishes.

What to expect

Supported inputs
WebM videos and other readable video files.
What happens
VP8, VP9, and AV1 video is re-encoded to H.264, and Opus or Vorbis sound to AAC. H.264 video and AAC sound are copied as they are.
Limits
Re-encoding takes longer than copying. A transparent WebM loses its transparency, since H.264 has none.

Private by design

Your video stays on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

Yes. It holds H.264 video and AAC sound, which QuickTime, iMovie, Final Cut, and Photos all open.

Not yet. A transparent MOV needs ProRes 4444, which browsers can’t encode, so transparent areas turn black.

Very little. The video is re-encoded once, at a rate chosen for its size.

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