Change Video Speed
Make slow motion or fast-forward videos — 0.25× to 4×, with natural-sounding audio.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
How to use Change Video Speed
- 1
Drop your video above.
- 2
Pick a speed from 0.25× to 4×.
- 3
Click Change speed and download the MP4.
Features
- 0.25× – 4×From dramatic slow motion to quick time-lapse.
- Natural audioSound is sped up or slowed down without chipmunk or robot voices.
- PrivateEverything runs in your browser.
Frequently asked questions
Does slowing down make the video smoother?
It stretches the existing frames, so 0.5× of a 60 fps video still looks smooth; 30 fps footage may look slightly choppy at 0.25×.
Can I remove the sound?
Yes — turn off “Keep audio” for a silent result.
Is it free?
Yes, free with no watermark.