About this tool: MP4 to WebM Converter
Convert MP4 to WebM directly in your browser.
Convert video on your device. Codec support affects compatibility; choose quality, bitrate and audio after selecting a file. Re-encoding may change quality and large files need time and memory. A requested file size is not guaranteed.
Files, text, edits and results are processed on your device and kept only in the open page. They are not uploaded for processing. Reloading or closing the page clears the workspace. Files you download to your device remain there until you delete them.
How to use it
- Select MP4 video · MP4
- Quality · Audio
- Convert → WebM → Download File