WebM to MOV converter

Convert WebM video to MOV in your browser. When the codec fits, only the container changes, so it takes seconds and the quality stays the same.

    Drop WebM files here or choose files.

    • 500MB per file. Up to 10 minutes when only the container changes, 3 minutes when re-encoding. Up to 5 files at a time
    • The first time you use it, the browser downloads the video engine (about 31MB)

    Auto skips re-encoding when the source can go into the new format as is, which is fast and keeps the quality intact. Otherwise it re-encodes at normal quality. Light reduces the file size at some cost in picture quality.

    For vertical video this refers to the shorter side. Choosing a size smaller than the original forces a slower re-encode. The tool never upscales.

    Files never leave this device. Privacy policy

    Result

    Upload a WebM video and click Convert. The MOV file will appear here.

    What to do next

    WebM to MP4 converter

    When you need an MP4 that plays anywhere.

    Compress a video

    Shrink the video to fit iMessage, Gmail or Discord upload limits.

    Trim a video

    If a video is too long to convert, cut out the part you need first. Quality stays the same.

    How it works

    Choose a WebM video and click Convert to save it as MOV. MOV is Apple's format, so it is the easiest to work with on a Mac or iPhone and in iMovie or Final Cut.

    With quality set to Auto, the tool first checks the codec inside the video. If MOV can hold it as is, it swaps only the container without re-encoding. That takes a few seconds and the quality is unchanged. If the codec does not fit, the tool re-encodes and tells you below the result which method it used. Several files convert one after another.

    Things to know

    Some Windows programs cannot open MOV. Unless the video is for a Mac or iPhone, MP4 is the better choice.

    Re-encoding processes every frame on your device, so it is slow. That is why the limit is 10 minutes when only the container changes and 3 minutes when re-encoding. 4K video is reduced to 1080p when it has to be re-encoded.

    Frequently asked questions

    Does it work with screen recordings saved as WebM?

    Yes. WebM files from browsers and screen recorders use VP8 or VP9, which MP4 and MOV cannot hold as is, so the tool re-encodes to H.264. To keep that workable on your device, it accepts videos up to 3 minutes. For longer ones, cut out the part you need with Trim a video first.

    When should I use MOV?

    When you are bringing the video into iMovie or Final Cut on a Mac, or into the iPhone Photos app. The video inside is the same H.264 as MP4, so converting from MP4 only swaps the container with no re-encoding. For Windows, MP4 is the safer choice.

    Why does it take so long? Does it work on a phone?

    The video is processed on your device, not on a server. When only the container changes, it takes a few seconds. When the video has to be re-encoded, it can take several times the length of the video depending on your hardware. It works on a phone but much more slowly, and it stops if the screen turns off or you switch apps. For long videos, use Chrome or Edge on a computer.

    Are my files uploaded to a server?

    No. The conversion runs entirely in this browser, and the file never leaves your device. The only download is the conversion engine, once. The result disappears when you close the page, so use the save button to keep it.

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