Can I slow down a video to 0.5x speed?
Yes. Set the speed multiplier to 0.5x for half-speed playback. You can go as low as 0.25x.
Change video speed online
Speed up or slow down any video with precise control. Adjust playback rate from 0.25x to 4x — processed entirely in your browser for maximum privacy.
FAQ
Will changing speed affect audio quality?
By default the audio pitch adjusts with speed. You can enable pitch correction to keep the original tone.
What is the maximum speed I can set?
You can speed up videos to 4x. For higher rates, apply the speed change multiple times.
Does it work on mobile browsers?
Yes. CutFast works on modern mobile browsers including Safari and Chrome on iOS and Android.
Is there a file size limit?
No hard limit. Processing happens locally, so it depends on your device's available memory.
Can I speed up only a section of the video?
Trim the section first using our video trimmer, then change its speed. Combined workflows are supported.