Convert WebM to MOV
Convert WebM video files to MOV (QuickTime) format directly in your browser. MOV with H.264 is the native video format for Final Cut Pro, iMovie, and QuickTime Player — WebM has limited support in the Apple ecosystem. No upload needed.
Drag 'n' drop files here, or
click to select files
.webm
Drop your files and click Convert to get MOV
//when_to_use
When to Convert WebM to MOV
- Converting Loom screen recordings (WebM) to MOV for editing in Final Cut Pro on Mac
- Preparing WebM YouTube downloads as MOV for inclusion in iMovie projects
- Converting OBS streaming recordings (WebM output) to MOV for Apple-native video workflows
- Migrating WebM video assets from web projects to MOV for use in Keynote presentations
- Converting Google Meet recording exports (WebM) to MOV for editing on macOS with QuickTime Player
//comparison
WEBM vs MOV
| Property | WEBM | MOV |
|---|---|---|
| Container | WebM (Matroska subset) | MOV (QuickTime) |
| Video codec | VP9 or VP8 | H.264 (CRF 23) |
| Audio codec | Vorbis or Opus | AAC 128kbps |
| Final Cut Pro support | Limited / unreliable | Native |
| QuickTime Player support | No (or partial) | Native |
| Best for | Web streaming, YouTube | Apple editing workflows |
//how_it_works
How It Works
Drop your WebM files
Drag and drop or select WebM files. First use loads FFmpeg WASM (~30MB).
FFmpeg decodes WebM
FFmpeg WASM parses the WebM container and decodes the VP9/VP8 video and Vorbis/Opus audio streams to raw frames and PCM.
H.264 + AAC re-encode
Video is re-encoded to H.264 at CRF 23 with libx264; audio to AAC at 128kbps. Output is wrapped in a MOV container with QuickTime metadata.
Download your MOV files
Your MOVs open directly in Final Cut Pro, iMovie, QuickTime Player, and any video editor that supports QuickTime.
// under the hood
WebM is the open container format using VP8 or VP9 video and Vorbis or Opus audio. MOV is Apple's QuickTime container, typically holding H.264 video with AAC audio. Our converter uses FFmpeg WASM to demux the WebM container, decode the VP9/VP8 video and Vorbis/Opus audio streams, then re-encode video to H.264 at CRF 23 with libx264 (medium preset) and audio to AAC at 128kbps. Output is wrapped in a MOV container with QuickTime metadata.
//faq
Frequently Asked Questions
- Why convert WebM to MOV?
- QuickTime Player and Final Cut Pro don't import WebM reliably. If you've downloaded a WebM clip from YouTube, recorded a Loom video, or exported from OBS, converting to MOV with H.264 video and AAC audio gives you a file that opens directly in Final Cut, iMovie, and QuickTime Player.
- What codecs are used in the MOV?
- We use H.264 video at CRF 23 with libx264 (medium preset) and AAC audio at 128kbps — the standard combination expected by Final Cut Pro, iMovie, and the QuickTime ecosystem. The MOV container holds the same H.264/AAC streams MP4 uses; the difference is metadata structure.
- Is there quality loss?
- Yes — WebM uses VP9 or VP8, MOV uses H.264, both lossy. Transcoding adds a second encoding stage. We use H.264 at CRF 23 which is visually transparent for most content. The result looks essentially identical to the WebM source.
- Are large WebM files supported?
- Browser memory is the limit — FFmpeg WASM has a 2GB working memory cap. Typical WebM files (Loom recordings, YouTube downloads) under ~1GB work fine. For multi-gigabyte WebM, our desktop app handles them without limits.
- Are my WebM files uploaded?
- No. FFmpeg WebAssembly runs entirely in your browser. Your WebM files never leave your device.
//related_converters
Related Converters
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→