Convert Y4M
YUV4MPEG2 raw video stream. 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 “Y4M to something” can land on a page that only does that job. The file picker on those pages expects Y4M when you are leaving this format, or produces Y4M 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 Y4M 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 Y4M 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 Y4M
- Y4M to MP4H.264 video in the container phones and sites expect.
- Y4M to WebMVP8 video for the open web.
- Y4M to MOVQuickTime container, often off a camera or an iPhone.
- Y4M to MKVMatroska container. Decode and encode via ffmpeg.wasm.
- Y4M to AVIOlder Windows video container. Decode and encode via ffmpeg.wasm.
- Y4M to FLVFlash Video container for older web and camera clips.
- Y4M to 3GPOld mobile phone video container.
- Y4M to MPGMPEG-1 program stream (.mpg / .mpeg).
- Y4M to TSMPEG transport stream from broadcast or screen capture.
- Y4M to VOBDVD Video Object streams.
- Y4M to DIVXMPEG-4 ASP in an AVI-style container (DivX tag).
- Y4M to F4VFlash MP4 relative used by older Adobe tooling.
- Y4M to OGMOgg media with Theora/Vorbis.
- Y4M to DVDigital Video tape format.
- Y4M to M2VRaw MPEG-2 video elementary stream.
- Y4M to SVISamsung SVI (AVI-family) clips.
- Y4M to NUTNUT container from the FFmpeg project.
Convert to Y4M
- MP4 to Y4MH.264 video in the container phones and sites expect.
- WebM to Y4MVP8 video for the open web.
- MOV to Y4MQuickTime container, often off a camera or an iPhone.
- MKV to Y4MMatroska container. Decode and encode via ffmpeg.wasm.
- AVI to Y4MOlder Windows video container. Decode and encode via ffmpeg.wasm.
- FLV to Y4MFlash Video container for older web and camera clips.
- 3GP to Y4MOld mobile phone video container.
- MPG to Y4MMPEG-1 program stream (.mpg / .mpeg).
- TS to Y4MMPEG transport stream from broadcast or screen capture.
- VOB to Y4MDVD Video Object streams.
- DIVX to Y4MMPEG-4 ASP in an AVI-style container (DivX tag).
- F4V to Y4MFlash MP4 relative used by older Adobe tooling.
- OGM to Y4MOgg media with Theora/Vorbis.
- DV to Y4MDigital Video tape format.
- M2V to Y4MRaw MPEG-2 video elementary stream.
- SVI to Y4MSamsung SVI (AVI-family) clips.
- NUT to Y4MNUT container from the FFmpeg project.
Related: Convert · All formats · How it works