Change the container format of a video file (e.g. MKV → MP4) without re-encoding. Fast and lossless — only the wrapper changes. Uses FFmpeg WASM in your browser.
Drop a video here or click to browse
MP4, MKV, WebM, MOV, AVI, TS and more
Source File
Target Format
Note: Remuxing only works when the codec inside is compatible with the target container. If not compatible, you may get an error.