How to Use iMovie to Rotate a Video on an iPhone
If you accidentally took a sideways video with your iPhone camera when you were sure you were shooting in landscape mode, rotate the video using iMovie, which is free and available from the App Store for both iPhone and Mac. Another free, third-party app for iPhone is Rotate And Flip - RFV. If your iPhone runs iOS 12 or earlier and has iMovie on it, use iMovie to rotate a video. Here’s how:
Use iMovie to Rotate a Video on a Mac
If your videos are stored on a Mac, use iMovie to rotate them. iMovie comes pre-installed on all Macs. This app also rotates any video stored an older iPhone, such as an iPhone 4, 5, 6, or possibly 7 if you can’t install the apps you want on it. Here’s how to use iMovie for Mac to rotate a video. This process may lower the video quality, so it’s a less ideal solution than doing it on the iPhone.
