Saturday, July 31

How to speed up a video on your iPhone with iMovie or the Photos app


  • To speed up video on your iPhone, you can use iMovie or the Photos app.
  • You can speed up a video in iMovie by using the “Speed” button in the video editing toolbar.
  • You can speed up a Slo-mo video in Photos by dragging the vertical bars below the frame viewer.
  • Visit Insider’s Tech Reference library for more stories.

You can speed up a video on an iPhone in two different ways, depending on the type of file you’re working with.

If you want to speed up a video that’s at regular speed, you can upload it to the free iMovie app and use its native speed tool.

If you’ve recorded a video using your iPhone’s Slo-Mo feature, open your video in the Photos app in edit mode, and play with the sliding vertical bars beneath the frame viewer.

Here’s how to do both.

How to speed up a video on your iPhone in iMovie

1. Open the iMovie app on your iPhone. If a welcome screen appears, tap Continue.

2. On the Projects page, tap the plus “+” sign icon to start a new movie.

Screenshot of iMovie app Projects page

Tap the square with a plus sign in it.

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3. A New Projects pop-up window will appear. Tap Movie.

Screenshot of iMovie app New Project window

Select “Movie” in the pop-up.

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4. On the next screen, select a video from your camera roll, then tap Create Movie at the bottom.

Screenshot of iMovie app video selection screen

Choose a video and then hit “Create Movie.”

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5. Tap the video clip in the timeline and wait for the video editing tools to appear before selecting the speed tool, which looks like a speedometer.

Screenshot of iMovie app video editing tools

Select the video clip (highlighting it yellow), then tap the speedometer icon in the toolbar that appears.

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6. Drag the yellow slider at the bottom to the right to speed up your video or to the left to slow down your video. You can increase the speed by up to 2x the original or slow it down by up to 1/8x the original.

Screenshot of iMovie app speed editing tool

Drag the yellow bar to the left or right.

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7. Tap Done in the top-left corner of the screen.

8. Hit the Share button at the bottom of the screen and choose how you want to save the completed video.

Screenshot of iMovie app Share page

Tap the “Share” button to save or share your video.

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How to speed up a Slo-mo video on your iPhone in the Photos app

1. Open the Photos app and select the Albums tab at the bottom of the screen.

Screenshot of Photos app on iPhone

In the Photos app, go to your “Albums.”

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2. On the Albums page, scroll down to the Media Types section and tap Slo-mo.

Screenshot of "Media Types" section of Photos app on iPhone

Select “Slo-mo.”

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3. Select the video you want to speed up and tap Edit in the top-right corner.

Screenshot of Slo-mo video in Photos app "Edit" button

Select the “Edit” button.

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4. In the white hatched line beneath the video timeline, drag the two taller white vertical bars together to completely remove the Slo-Mo effect and speed up the video.

Screenshot of video editing in Photos app

Drag the two white bars together.

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5. Tap Done in the bottom-right corner.



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