Upload the video file, pick a speed factor (0.25x to 4x), and download - the audio track's pitch and duration are kept matched to the new video timing, not just sped up or slowed down separately.
Video Speed Changer
Speed up or slow down a video, right in the browser.
Key features
- Upload the video file, pick a speed factor from 0.25x to 4x, and download the result.
- The audio track's pitch and duration stay matched to the new video timing, instead of the sound playing at a mismatched speed.
How changing speed affects the file
Changing speed re-encodes the video (unlike trim or strip-audio, which copy the stream losslessly), so it takes longer than a simple cut and the output is not byte-identical to the source.
Your files stay in the browser
The video is re-timed entirely inside this browser tab, so the clip you drop in never leaves your device for a server.
Related video tools
To trim, compress, or remove the audio from the video instead, see the related tools below.
Frequently Asked Questions
What does Video Speed Changer do?
Speed up or slow down a video, right in the browser.
When should I reach for video speed changer?
Changing speed re-encodes the video (unlike trim or strip-audio, which copy the stream losslessly), so it takes longer than a simple cut and the output is not byte-identical to the source.
What complementary tools work well alongside video speed changer?
To trim, compress, or remove the audio from the video instead, see the related-tools section.