Upload a video and an audio file; the original soundtrack is dropped and the new audio takes its place. The video stream is copied losslessly.
Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.
The tool drops the video’s existing audio and muxes in your replacement, copying the picture without re-encoding. One pass, full quality, local processing.
Re-recorded narration over a flubbed take, licensed music replacing a copyrighted background, cleaned-up audio from an editor swapped back under the original picture, and dubbed versions of existing videos.