WebM is an open, royalty-free format with excellent web support and good compression.

MP4 to WebM

Convert MP4 videos to the open WebM format.

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About MP4 to WebM

Turn MP4 files into WebM (VP8/Vorbis) video — great for the web and open-source workflows. Runs privately in your browser.

Open the MP4 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.

Why WebM?: WebM is an open, royalty-free format with excellent web support and good compression.

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