Speed up video
Speed up a video or make it slow motion, from 0.25× to 4×, with the sound following along.
Change the video speed.
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Speed up video: what it is for
The tool changes the speed of a video, from 0.25× (slow motion) to 4× (very fast), adjusting the sound along with it so it stays in sync.
The video is not uploaded to any server: everything is processed in your browser, so it works with personal files in full privacy.
How to use
- Upload the video.
- Choose the speed.
- Download the new video.
When to use it
- Timelapse of recipes and projects.
- Slow motion for sports plays and dances.
- Shorten long tutorials.
Frequently asked questions
Does the voice get high-pitched when sped up?
No. The audio follows the speed without changing the pitch. Below 0.5× and above 2× the sound may get odd, so you can remove it.
Is it good for timelapse?
Yes. Use 4× and run it again on the result if you want it even faster.
Is the video uploaded to a server?
No. Everything happens in your browser.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.