Video
Turn your WebM files into OGG in seconds. Everything happens in your browser: nothing is uploaded to any server.
Drag your files here
Or paste them with Ctrl+V. They never leave your device.
Editing programs, TVs and old phones often cannot open it. As OGG (with Opus) it is small and suits games, websites and free software.
WebM is an open, patent-free video format made for the web; here it comes out with VP9 video and Opus audio.
Strengths: It compresses very well and plays directly in Chrome, Firefox, Edge and recent Safari.
Limits: Editing programs, TVs and old phones often cannot open it.
OGG is an open, patent-free container; it traditionally carries Vorbis audio and, when converting here, Opus.
Strengths: Video games, Wikipedia and many free programs use it, and it compresses very well.
Limits: iPhones and some old or car players cannot open it.
No. The WebM to OGG conversion runs entirely in your browser, with code downloaded from this site and executed on your device. You can check it in the Network tab of the developer tools or by going offline after the page loads.
Yes: in the options set the start and end time, for example from 1:30 to 2:45, and only that clip is extracted.
Up to 2 GB and 3 hours of video on desktop; on mobile, 500 MB and 30 minutes (AVI: 1 GB and 1 hour on desktop). If it is over, you are told before it starts and can trim it.
Yes. Drop as many WebM files as you like: several are converted at the same time, depending on your processor cores, and when they finish you can download each OGG or all of them in a ZIP.