iOS · iPhone & iPad

Speed Up or Slow Down Video in iMovie on iPhone or iPad

Source-checked About 10 minutes

Answer

Select a timeline clip, open Speed, drag the control toward the tortoise or hare, and preview the audio and clip duration before export.

Guide steps4 steps
  1. Select the clip
  2. Open Speed
  3. Review clip ranges and audio
  4. Preview and export a short test
  5. If it still does not work

Select the clip

Open a movie project and tap the video clip in the timeline so its inspector appears.

Open Speed

Tap the Speed button and drag toward the tortoise to slow down or the hare to speed up.

Review clip ranges and audio

Add speed ranges when only part should change and decide whether pitch preservation produces acceptable audio.

Preview and export a short test

Preview the complete changed range, then export a short sample. Check motion, transitions, duration, pitch, and speech intelligibility before sharing the complete movie.

Video walkthrough

If it does not work

  • If timing or audio is damaged, reset that clip's speed or shorten the range and restore the preserved project. Do not overwrite the original video.
Sources and verification

Checked against official documentation on . Scope: iPhone & iPad.

Reviewed against the linked first-party guidance; interface labels can vary by current app, service, or operating-system version.

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