Slow motion video editor, smooth, in your browser

Stretch a moment for emphasis without sending raw footage to a cloud renderer. Supercut slows video on your device and can interpolate frames so motion stays smooth.

Open the editor, freeNo upload · No sign-up to start · 100% private

Just type

Smooth slow motion at 0.5x

Works with

MP4MOVWebM

How it works

  1. 1

    Drop your clip

    Add your video to the editor locally, nothing uploads.

  2. 2

    Ask for slow motion

    Try “slow motion 0.5x” or “half speed on the jump shot.” Supercut plans the edit from plain English.

  3. 3

    Export the slow-mo cut

    Preview smooth playback and download. Processing happened entirely in your browser.

Tips

  • 0.5x stays smooth on most footage.
  • Slow only the key beat, not the whole clip.
  • Higher frame-rate source slows down more cleanly.

Why it stays private

Supercut decodes, edits and exports your video entirely in your browser with WebAssembly. Your footage is never uploaded, the only thing that leaves your device is the text of your prompt, so the AI knows what edit to plan. Read more in our Privacy Policy.

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Who uses this

Frequently asked questions

Will slow motion look choppy?

Supercut can interpolate frames for smoother slow motion, especially at moderate speeds like 0.5x.

Can I slow only one section?

Yes. Specify the range, e.g. “slow 0:08 to 0:12 to 0.25x,” and Supercut applies it to that slice.

Is my video uploaded?

No. Slow-motion processing runs locally. Your clip never leaves your device.

Ready to try it?

Drop a clip and describe the edit, it runs right here in your browser.

Open the editor