Change Video Speed

Speed up or slow down any video file in your browser. Choose from 0.25x slow-motion to 4x fast-forward. Perfect for time-lapse effects, slow-motion replays, faster tutorials, and content repurposing. No upload, no signup, processed with FFmpeg.wasm.

Drop your video anywhere, click to browse

MP4, MOV, WebM, AVI · Any format

Ctrl+Vto paste a copied file

Frequently Asked Questions

What speed options are available?
0.25x (very slow motion), 0.5x, 0.75x, 1x (normal speed), 1.25x, 1.5x, 2x, and 4x (fast-forward). Custom speed values can be entered manually.
Does the audio pitch change when I change video speed?
At speeds below 2x, audio is pitch-corrected automatically. At very high speeds (4x), audio may be disabled or sped up accordingly.
Can I use this to create slow-motion video from normal footage?
Yes. Set the speed to 0.5x or 0.25x to create a slow-motion effect from any standard video.
Which formats are supported?
MP4, WebM, MOV, and AVI. Output is saved as MP4.
Is the processing done in the browser?
Yes. FFmpeg.wasm handles the speed change locally with no server upload.