You’ve just received a video that you have been waiting to View on your Mac for months. Problem is, when you opened the video, it was playing sideways. This phenomenon is referred to as Vertical Video Syndrome. This happens frequently with videos captured from smartphones and video cameras.

If only you could just rotate the video to fix the orientation, everything would be perfect! Well, it can be done with just a few steps, and you don’t have to be a computer expert to do it. This tutorial will show you how to rotate standard, 4K, OR HD videos using QuickTime or iMovie on Mac.

Rotate Videos Using QuickTime

You can rotate your videos or movie files on Mac Os X with just a few simple steps. The QuickTime feature that enables you to rotate the videos is built-in to your Mac so you don’t need any third-party software. To rotate a video file on your Mac, follow these steps:

Open the video file you want to rotate in QuickTime on your Mac

1. Open the video file you want to rotate in QuickTime on your Mac. You can right click on the QuickTime icon on your dock, or go to Applications > QuickTime and find the file. A list of your video files will pop up along with options at the bottom of the popup:

2. Click or right click on the video you want to rotate and it will open in QuickTime, on your desktop.

3. With the video open and activated on the desktop, click on the Edit menu from the top menu bar.

A dropdown list will appear with options to rotate the video

4. A dropdown list will appear with options to rotate the video.

Choose Rotate Left or Rotate Right

5. Choose Rotate Left or Rotate Right to correct the position of your video. Then video will rotate 90 degrees in either direction. You can undo a change by selecting Edit > Undo > Rotate Right or Left from the top menu.

You can also flip the video vertically or horizontally in the same menu

6. Notice that when you make changes you want to the video, it will become an Untitled video file that you will have to name and save in a location of your choice. You can Save the video by pressing the Command + S shortcut keys, or by going to File > Save using the menu. If you don’t want the new file, you can press Delete and start over.

7. The new, rotated file will be saved as a new video in the location you selected in the dialogue box. If you want to override the original video, save the new file with the same file name. Otherwise, you will have 2 videos, the original and the rotated videos, saved to your computer.

Rotate Videos Using iMovie

You can also rotate your video in iMovie, a method that is similar to using QuickTime, but takes a bit more time. You will have to wait for IMovie to load and search for the clip on your computer. Rotate your video in iMovie by following these steps:

1. Launch iMovie

2. Find the video you want to rotate in the Library and open it in the iMovie window.

Select the video to activate it in the timeline

3. Select the video to activate it in the timeline.

Choose the Cropping tool option from the iMovie menu

4. Choose the Cropping tool option from the iMovie menu (Between pallet and video recorder icons)

5. Choose to rotate the video Clockwise or Counterclockwise by 90 degrees.

6. Click on the Apply button to save the change.

7. If you want to undo the changes, click on Reset.

Contact Apple Support

If you were not able to rotate your video in QuickTime or in iMovie after using these steps, you can contact the Apple Forums or Apple Support for more help.