About this tool
Change video playback speed from 0.25x slow motion up to 4x fast forward locally in your browser for free. Automatically chains audio tempo filters so sound stays synchronized with video.
Change Video Speed: Adjust Playback Tempo from 0.25x to 4x with Synchronized Audio
Questions & answers
How do I use Change video speed?
Choose a speed from 0.25× to 4×. Video and readable audio are adjusted together before export.
What limits should I know about?
Speed and compatibility depend on browser, codecs and memory. Prefer short inputs and save results before closing the page.
Where do my files and data go?
Your media is processed in this browser, not uploaded to this site. Save results before refreshing or closing.