Convert WebM
VP8 video for the open web. Every pair below runs in the browser. The file is not uploaded. Video and audio use FFmpeg in WebAssembly, fetched from this origin once, about 30 MB, then cached by the service worker. The clip itself is not part of that download.
This hub is the index, not the workbench. Each conversion is its own URL so a search for “WebM to something” can land on a page that only does that job. The file picker on those pages expects WebM when you are leaving this format, or produces WebM when you are arriving. A generic dropdown still exists under Video convert and Audio convert if you would rather pick the destination after you drop the file.
You can check the same way on every pair: open the network panel, drop a WebM file, convert it. You should see this origin. You shouldn't see a POST of the file. Google Analytics, if it's on, is page views, not your WebM bytes. If a tool needs a server, it isn't on this site.
This site can read it. This site can write it. Engine: ffmpeg.
Convert from WebM
- WebM to MP4H.264 video in the container phones and sites expect.
- WebM to MOVQuickTime container, often off a camera or an iPhone.
- WebM to MKVMatroska container. Decode and encode via ffmpeg.wasm.
- WebM to AVIOlder Windows video container. Decode and encode via ffmpeg.wasm.
- WebM to FLVFlash Video container for older web and camera clips.
- WebM to 3GPOld mobile phone video container.
- WebM to MPGMPEG-1 program stream (.mpg / .mpeg).
- WebM to TSMPEG transport stream from broadcast or screen capture.
- WebM to VOBDVD Video Object streams.
- WebM to DIVXMPEG-4 ASP in an AVI-style container (DivX tag).
- WebM to F4VFlash MP4 relative used by older Adobe tooling.
- WebM to OGMOgg media with Theora/Vorbis.
- WebM to DVDigital Video tape format.
- WebM to M2VRaw MPEG-2 video elementary stream.
- WebM to SVISamsung SVI (AVI-family) clips.
- WebM to NUTNUT container from the FFmpeg project.
- WebM to Y4MYUV4MPEG2 raw video stream.
Convert to WebM
- MP4 to WebMH.264 video in the container phones and sites expect.
- MOV to WebMQuickTime container, often off a camera or an iPhone.
- MKV to WebMMatroska container. Decode and encode via ffmpeg.wasm.
- AVI to WebMOlder Windows video container. Decode and encode via ffmpeg.wasm.
- FLV to WebMFlash Video container for older web and camera clips.
- 3GP to WebMOld mobile phone video container.
- MPG to WebMMPEG-1 program stream (.mpg / .mpeg).
- TS to WebMMPEG transport stream from broadcast or screen capture.
- VOB to WebMDVD Video Object streams.
- DIVX to WebMMPEG-4 ASP in an AVI-style container (DivX tag).
- F4V to WebMFlash MP4 relative used by older Adobe tooling.
- OGM to WebMOgg media with Theora/Vorbis.
- DV to WebMDigital Video tape format.
- M2V to WebMRaw MPEG-2 video elementary stream.
- SVI to WebMSamsung SVI (AVI-family) clips.
- NUT to WebMNUT container from the FFmpeg project.
- Y4M to WebMYUV4MPEG2 raw video stream.
Related: Convert · All formats · How it works