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.
Upload the video file, pick a speed factor from 0.25x to 4x, and download - the audio track's pitch and duration stay matched to the new video timing, instead of the sound playing at a mismatched speed.
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.
The file is processed in this browser tab and is never uploaded to a server.
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.