It's open, royalty-free, and well supported by modern browsers.

Video to WebM

Convert any video to the open WebM (VP9) format.

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About Video to WebM

Convert MP4, MOV and more to VP9 WebM, an open, web-friendly format with great compression. Runs privately in your browser.

Open the Video to WebM tool and add your file. It's processed in your browser, never uploaded.
Adjust the available options to get the result you want.
Download the result. There's no sign-up, no watermark, and no size cap.

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