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Video Speed Changer

Make a video faster (time-lapse feel) or slower (slow motion) and save it.

Tool inputs stay in your browser · optional AI search sends your query

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Good to know: Saving takes the length of the NEW video (e.g. 2× speed halves the time). Your files stay on your device: nothing is uploaded.

How to use it (step by step)

  1. 1Choose your video.
  2. 2Pick the part and the speed (below 1× = slow motion, above 1× = faster).
  3. 3Press Change speed, keep the tab open, then download.

Words to know

Pace / speed
Speed = distance per hour (km/h). Pace = time per distance (minutes per km), common in running.
Trim / speed (video)
Trimming cuts off the parts you do not need. Changing speed makes the video faster or slower.

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