Convert WebM to MP4
WebM is an open, royalty-free video container built for the web, typically carrying VP8 or VP9 video with Vorbis or Opus audio. Converting it to MP4 gives you a file suited to video for the web, phones, editing software and social platforms.
FilesMagic engine
Choose a WebM file — up to 25 MB
How to use it
- Choose your WebM file, or drag it onto the upload area.
- Select MP4 as the output format.
- Press convert and wait while the file uploads and is converted.
- Download the MP4 file.
About the formats
About WebM
WebM is an open, royalty-free video container built for the web, typically carrying VP8 or VP9 video with Vorbis or Opus audio. It is normally used for video embedded directly in web pages. Editing software and older devices support it less consistently than MP4.
About MP4
MP4 is the most widely supported video container, normally holding H.264 video alongside AAC audio. It is normally used for video for the web, phones, editing software and social platforms. It is a container rather than a codec, so an MP4 can still hold streams a given player cannot decode.
What to expect
- Up to 5 minutes and 1080p.
What happens to your file
Your file is uploaded to FilesMagic's own conversion servers over an encrypted connection, converted there, and deleted as soon as the download has been sent. We do not keep copies, and we do not log file names or file contents.
Questions
Is my file uploaded anywhere?
Yes. Converting this format needs software that cannot run in a browser, so the file is uploaded to FilesMagic's own servers, converted, and deleted once your download has been sent.
Does converting WebM to MP4 reduce quality?
Both formats compress by discarding detail, so re-encoding loses a little more. Converting once is fine; repeatedly converting the same file back and forth is what degrades it.
How big a file can I convert?
Files can be up to 25 MB, and video is additionally limited to 5 minutes and 1080p. Converting video is demanding work, and those limits are what keep it fast for everyone.