Can i save my video in MP4 file format ? app rely on web API standards and right now WebM is the only audiovisual media file format use to record video from the web because it’s royalty-free. At the opposite, software patents apply to MPEG-4 technologies. Reading any video using MPEG-4 is free, but charged to content publishers.

The WebM file created with is coded in real time. It means that video made from Chromium browsers are recorded without timestamp. This is not anymore the case with last Firefox version which provide video recording with timestamp included.

Anyway you can upload any WebM video file made with on any platform (YouTube, Facebook…) without any difficulties. This process will implicitly recreate the time stamp during the video saving. But if you need a video with a time stamp on your local device, to make some update at the time position 133 seconds for instance, you will have to convert it first to MP4 or another format with a 3rd party converter online tool or software, before to use it again on

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