Easiest Ways to Speed up a Video on iPhone (or slow down)

If you're looking to speed up a video on your iPhone, you're in the right place. Here are several ways to adjust video speed using different tools and apps available on your device.

How to Adjust Video Speed on iPhone​

1. Using the Photos App​

• Open the Photos app: Locate and tap the Photos app on your iPhone.
• Find your video: Browse through your media and select the video you want to edit.
• Tap the Edit button: This is at the top right corner of your screen.

• Adjust the speed:
  • Slow down the video: Tap the Slow-Mo option if your video is in Slo-Mo and adjust the vertical bars under the timeline to set the slow-motion effect to your liking. You can drag the slider to the left to slow down the video.
  • Speed up the video: Drag the vertical bars together in the editing timeline to remove the slow-motion effect or drag the slider to the right to speed up the video.
• Tap Done: Once you're happy with your adjustments, tap Done to save the changes.

This method is straightforward and utilizes the built-in functionality of your iPhone, making it easy to apply basic speed adjustments without additional apps.

2. Using iMovie​

• Open iMovie: Tap the iMovie app on your iPhone. If this is your first time, you might need to download it from the App Store.
• Create a new project: Tap Movie from the New Projects screen.
• Import your video: Select the video from your camera roll and tap Create Movie.
• Access the speed adjustment tool:
  • Tap the video clip in the timeline to highlight it.
  • Tap the Speed button (it looks like a speedometer) in the inspector toolbar at the bottom of the screen.
• Adjust the speed:
  • Slow down the video: Drag the speed slider to the left to reduce the speed. You can adjust up to 1/8x the original speed.
  • Speed up the video: Drag the speed slider to the right to increase the speed, up to 2x the original speed.
• Add ranges if needed: You can create different speed ranges within the same clip by dragging the yellow range handles or tapping Add in the inspector to set new range borders.
• Preview and save: Tap Done when you’re satisfied, and then tap the Share button to export the video.

iMovie offers more control and customization over your video speed adjustments, allowing you to create more professional edits.

3. Using a Third-Party App​

• Install a third-party app: Download an app like Videoshop, SlowMoVideo, or FilmoraGo from the App Store.
• Open the app and import your video: Start the app and choose your video from the camera roll.
• Adjust the speed:
  • Slow down the video: Locate the slow-motion feature and drag the slider to the left to set your desired speed.
  • Speed up the video: Use the speed adjustment tool and drag the slider to the right to increase the speed.
• Save your video: Once you’ve made your adjustments, save the video by tapping the save or export button.

Third-party apps can offer additional features and effects, but be cautious as they might reduce the video quality or add watermarks.

4. Using Video Speed Changer - Editor​

• Download the app: Search for "Video Speed Changer - Editor" in the App Store and install it.
• Open the app: Start the app and choose either to record a new video or import one from your device.
• Adjust the speed:
  • Make it faster: Drag the slider to the right to speed up the video.
  • Make it slower: Drag the slider to the left to slow it down.
• Save and share: Once satisfied, save the video and share it via social media or messaging apps.

This app is user-friendly and allows you to quickly adjust the speed without much hassle.

5. Using Video Candy (Web-based Editor)​

• Open Safari or another browser: Go to the Video Candy website.
• Upload your video: Click on the “+ Add File” button and select your video.
• Adjust the speed:
  • Slow down the video: Choose a slow-motion speed like x1.25 or x0.5.
  • Speed up the video: Select a speed like x2 or x5 to fast forward the video.
• Preview and export: Review your changes in the preview window and hit “Export” to download the edited video.

Video Candy is a great tool if you don’t want to download any apps and prefer to edit videos directly in your browser.

6. Using InShot​

• Download InShot: Find InShot in the App Store and install it.
• Open the app: Tap “Video” and create a new project.
• Import your video: Select your video from the library.
• Adjust the speed:
  • Slow down the video: Drag the speed slider to the left.
  • Speed up the video: Drag the speed slider to the right.
• Save your video: After editing, tap the export icon to save your changes.

InShot offers various editing features, but the free version includes ads and watermarks, which might be a downside for some users.