Turn a long clip into a snappy timelapse or tighten pacing for social. Supercut changes playback speed locally in your browser, so your source file never touches a server.
Just type
“Speed up the whole video 2x”
Works with
Load the video in the editor. It stays in your browser, no upload step.
Say “speed up 2x” or “slow to half speed from 0:10 to 0:25.” Supercut applies the change from your words.
Preview the timing, then download. The sped-up file was processed entirely on your device.
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.
Create smooth slow motion in your browser. Slow clips to 0.5x or lower with frame interpolation, no upload, your footage stays private.
Trim and cut video in your browser. Drop a clip, say where to cut, and download it, your footage never leaves your device. No upload, no watermark to start.
Compress video to a smaller file size in your browser. Shrink clips for sharing without uploading them anywhere, your footage stays on your device.
Make promos and social ads by typing what you want, in your browser. No editor to hire, no software to learn, and your footage never uploads.
Trim lessons, add captions for accessibility, clean up audio, and cut promo clips, all in your browser. Unreleased course content never leaves your device.
Yes. Describe the range and speed, like “2x from 0:05 to 0:20,” and Supercut applies it to that section only.
No. Speed changes run in your browser with WebAssembly. Your footage never leaves your device.
Audio speeds up with the video by default. You can also mute or clean audio separately with another prompt.
Drop a clip and describe the edit, it runs right here in your browser.
Open the editor