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WebM to MOV Converter — Free, Online, No Upload

Downloaded a WebM from a website and iMovie won't open it? MOV is the fix for the entire Apple ecosystem.

Free · no signup2 free files a day100% in-browser · no upload

Tap to select WEBM files

or click to browse

2 free files per day (2 left today) · Up to 10 MB each · Upgrade for more

✓ Files never uploaded✓ 100% browser-based✓ No account required
Need the reverse?MOV → WEBM

How to convert WEBM to MOV online

  1. 1

    Drop your WEBM file

    Drag your WebM Video Format file onto the box above, or click it to pick a file.

  2. 2

    Wait a few seconds

    Conversion starts on its own and runs on your device, not on a server.

  3. 3

    Download your MOV

    Click Download to save the QuickTime Movie file.

WEBM vs MOV: format overview

WEBM

WebM Video Format

Google (On2 Technologies) · 2010

Compression
lossy
Transparency
No
  • ✓ Royalty-free codec (VP8/VP9/AV1)
  • ✓ Excellent web streaming support
  • ✗ Not supported on iOS/Safari natively
MOV

QuickTime Movie

Apple · 1991

Compression
lossy
Transparency
No
  • ✓ High quality, preferred by Apple ecosystem
  • ✓ Supports ProRes codec for editing

WEBM magic bytes: 1A 45 DF A3

MOV magic bytes: 00 00 00 xx 66 74 79 70 71 74

Why convert WEBM to MOV?

WebM was engineered for the open web — it streams without issues in Chrome, Firefox, and Edge and is ideal for HTML5 video. But the moment you bring a WebM file into a Mac-based creative workflow, the format becomes a wall. Final Cut Pro does not import WebM. iMovie cannot open it. QuickTime Player on macOS has no WebM decoder. Any web recording, video download, or conference export in WebM format is locked out of Apple's video editing ecosystem entirely.

MOV is Apple's QuickTime container format and the native input for Final Cut Pro, iMovie, QuickTime Player, and every Apple video tool. It supports H.264 and HEVC video with AAC audio — the codec combination that the entire Mac creative ecosystem is built around. Files in MOV format open instantly in every Apple application without any additional codec installation.

Converting WebM to MOV re-encodes the VP8 or VP9 video as H.264 inside a QuickTime container, making it immediately editable on any Mac. The audio is converted from Opus or Vorbis to AAC. Re-encoding at CRF 23 introduces a small quality reduction; keep the WebM too if you plan to do heavy editing afterwards. MOV files are typically larger than equivalent WebM files but far more compatible with professional Mac workflows. This is the standard path from browser-captured video to Final Cut Pro or iMovie.

Quality & file size: WEBM to MOV

Typical sizes (1 minute 1080p): WEBM 50–200 MB → MOV 150–500 MB.

Frequently asked questions

Why can't Final Cut Pro or iMovie open WebM files?
Apple's video tools don't include a WebM decoder. MOV with H.264 is Apple's native video format and is immediately importable into Final Cut Pro, iMovie, and QuickTime Player without plugins.
Will the MOV output be compatible with older Mac software?
Yes — the converter outputs H.264 in MOV, which is compatible with macOS versions going back many years and with all versions of iMovie and Final Cut Pro.

Your WEBM file never leaves this tab — FormatDrop has no endpoint that receives file data. How it works