Cinema · room 6
Change Video Speed
Speed up or slow down a video.
🔒 Processed in your browser · No upload · No sign-up
Drop a video file here or click to browse
MP4, MOV, WebM… Files over ~500 MB may exceed browser memory.
Speed up or slow down a video
Make time-lapses, slow-motion clips or simply shorten long recordings. Pick any speed from 0.25× to 4× — the audio is time-stretched to match without the chipmunk effect, or you can remove it entirely.
Does it upload my video?
No. The video is processed by FFmpeg running in your browser via WebAssembly; nothing leaves your device.