Change Video Speed
Drop your file here or click to browse
Formats: .mp4, .mov, .avi, .webm, .mkv · Max: 500 MB
Speed up or slow down your videos directly in your browser. Choose from 0.25x slow motion to 4x fast forward — audio is automatically adjusted to match.
Great for creating time-lapse effects, slow-motion highlights, or adjusting video pace for presentations and tutorials.
All processing runs locally in your browser. Your video data never leaves your device.
FAQ
What speed options are available?
You can slow down to 0.25x or speed up to 4x, with several options in between.
Does audio change with the speed?
Yes. Audio speed is adjusted to match the video speed while preserving pitch as much as possible.
Is my video uploaded to a server?
No. Everything happens in your browser using WebAssembly.