Change Video Speed
Slow motion, timelapse, or just a little faster.
Free · No upload · No sign-up · No watermark
How to change the speed of a video
- 01
Open your video
Drop a video file into the editor.
- 02
Pick a speed
Choose a preset like 0.5× or 2×, or set any value in between. Preview it instantly.
- 03
Download
Export the sped-up or slowed-down video as MP4.
Why use Cutlia for this
0.25× to 4×
From smooth slow motion to fast timelapse.
Natural-sounding audio
Keep voices at their normal pitch, or mute the audio entirely.
Instant preview
Hear and see the new speed before you export.
Private
Processed locally in your browser — no upload required.
Frequently asked questions
Will the voice sound like a chipmunk?
No. Pitch correction keeps voices sounding natural when you speed up or slow down a video. You can turn it off for a fun effect.
Is my video uploaded to a server?
No. Cutlia processes your video directly in your browser using WebAssembly and your device's hardware. The file never leaves your computer or phone, so it stays completely private.
Is it really free?
Yes. Cutlia is free to use with no account, no trial and no watermark on your export. The site is paid for by the ads on it, and your files never leave your device.