Free Video Speed Changer
Speed up or slow down a video, directly in your browser.
Add a video to change speed
Choose an MP4, WebM, or MOV file.
Maximum 300 MB · Up to 3 minutesProcessed in your browser. Your video never leaves your device.
How to change a video's speed
- Choose a video file.
- Pick a speed from 0.5× to 2×.
- Select Change speed.
- Preview and download the result.
How this works
Your browser plays the video at your chosen playback rate while recording the canvas and audio into a new WebM file — since recording happens in real time, a faster playback rate naturally produces a shorter output, and a slower rate produces a longer one.
A note on scope
Audio speeds up or slows down along with the video, using your browser's own audio time-stretching. The output is a WebM file, which plays natively in all current browsers and most modern media players and apps.
Common use cases
- Speed up a long recording to fit a shorter time slot
- Slow down a clip for a dramatic or slow-motion effect
- Adjust a tutorial video's pacing
Frequently asked questions
Is this video speed changer free?
Yes. It is completely free, with no signup and no watermark.
Is my video uploaded anywhere?
No. The video is processed entirely in your browser. Nothing is sent to Inqita or stored.
Does the audio pitch change with speed?
Most current browsers automatically preserve natural pitch when changing playback speed, so voices don't sound like chipmunks or slowed-down monsters.
What speeds are supported?
0.5×, 0.75×, 1.25×, 1.5×, and 2×.
What format is the output?
WebM, a widely supported video format that plays in all current browsers and most media players and apps.