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Vidéo Converter

Convertir a video between MP4 and WebM.

🎬Tap to choose a video fileou déposez-le ici

    The first time you use a video or audio tool, a one-time ~30 MB processing engine downloads. WebM conversion is slower — it can take a while for longer videos.

    Comment ça marche

    1. 1Choisissez a video file.
    2. 2Choisissez MP4 or WebM as le format cible.
    3. 3Convertir et téléchargez le résultat.

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    À propos de cet outil

    Switch a video between MP4 and WebM depending on where you need to use it — MP4 for broad compatibility, WebM for smaller web-friendly files. Conversion runs entirely on your device; converting to WebM is slower than MP4 and can take a while for longer videos.

    Which formats are supported?

    MP4 and WebM, in either direction.

    Why is WebM conversion slower?

    WebM’s video codec (VP9) is more computationally intensive to encode than MP4’s H.264, especially running in the browser.

    Is my video uploaded anywhere?

    No, conversion happens entirely on your device. A one-time ~30 MB processing engine downloads the first time you use a video or audio tool.