Rotate Video on Mac: Quick Fixes and Export Tips

Updated 9 November 2026 · Standard formula, shown below

To rotate a video on a Mac, open it in QuickTime Player, choose a rotation command from the Edit menu, then save or export the result. For clips that need more editing or a rotation setting QuickTime does not offer, iMovie provides a visual rotate control and lets you export a new video file.

Choose the right Mac tool

The simplest option depends on whether you need a quick correction or a finished edit. QuickTime Player is suitable for turning a clip by 90 degrees and saving a copy. iMovie is useful when you want to preview the framing, combine the clip with other footage, or control the final export. The Photos app can also be used to rotate videos stored in a Photos library, though its editing workflow is different from working with a standalone file.

QuickTime Player: Best for a straightforward quarter-turn of a video file.
iMovie: Best when you want to inspect the crop or include the rotation in a larger project.
Photos: Convenient for a clip already in your library; edits are managed within Photos.

Before editing, consider making a duplicate. That preserves the original orientation and gives you a fallback if an export changes the framing, file format, or quality.

Rotate a video in QuickTime Player

In Finder, locate the video and open it with QuickTime Player. If another app opens it, Control-click the file, choose Open With, and select QuickTime Player.
Choose Edit in the menu bar. Select Rotate Left or Rotate Right. Each command turns the image by 90 degrees; repeat it if the clip needs a half-turn.
Play the clip or scrub through it to check that the picture is upright throughout. The rotation applies to the video, rather than just changing the playback window.
Choose File > Save if that command is available. To keep the source untouched, use File > Export As and select an available resolution, then choose a filename and destination.

Menu wording and available export options can differ by macOS version and by the file. If QuickTime does not let you save the change, or its export choices do not suit your needs, try iMovie. Do not assume that closing a video window has saved an edit; check for a save prompt and confirm the output file before deleting anything.

Rotate and crop in iMovie

iMovie uses a viewer control to rotate a clip within a project. The exact arrangement of controls may vary, but the basic workflow is to create a project, add the clip, select it in the timeline, and use the crop controls above the viewer.

Open iMovie and create a movie project. Import the video, then drag it into the timeline.
Select the clip in the timeline. Click the crop control above the viewer; it may appear as a crop icon.
Choose the rotate-left or rotate-right control in the viewer. Click again if necessary, and inspect the result in playback.
When the clip looks right, use the share or export command to save a finished movie file. Choose an appropriate resolution and destination, then wait for the export to complete.

Rotating in iMovie may change how the image fits the project frame. A portrait clip placed in a landscape project can show empty areas, or the editor may crop parts of the picture to fill the frame. Use the viewer’s crop options to choose between keeping the full image and filling the frame; check faces, text, and the edges before exporting.

Rotate a video in Photos

If the clip is in Photos, select it and open its editing view. Look for the crop and straighten controls, then use the rotate control until the picture is correctly oriented. Confirm the edit when finished. Photos generally treats this as a nondestructive library edit: you can return to editing and revert to the original, rather than having to replace the source file manually.

Photos is a practical choice for a personal library, but exporting a video creates a separate file and may offer different settings from a dedicated video editor. If you need a particular output resolution, a project with multiple clips, or greater control over framing, use an editor such as iMovie instead.

Why a rotated video may look wrong

It is sideways after saving: Make sure you rotated the clip itself, not merely turned the Mac’s display or changed a viewer setting. Reopen the exported file to verify the saved result.
The picture is cropped: A rotation can make the clip’s shape disagree with the project’s aspect ratio. Adjust the crop or use a project frame that better matches the source.
The result has black or empty borders: This can happen when the editor preserves the entire image instead of cropping it to fill the frame. Decide whether retaining the edges or filling the screen matters more.
The save or export option is unavailable: Check that the file is not being edited from a read-only location and that you have permission to write to the destination. Try exporting to a folder such as Movies or Desktop.
The rotation appears inconsistent: Check more than one moment in the clip. Some recordings can contain orientation metadata or segments that behave differently between players; exporting a new file from an editor often makes the intended appearance easier to verify.

Rotation, quality, and keeping the original

Turning a picture by 90 degrees does not inherently require making it blurry, but exporting video can involve encoding it again. Re-encoding may affect image quality, file size, and compatibility. Use a sensible resolution for the intended screen, and avoid repeatedly exporting the same clip if quality matters. Keep the original until you have watched the finished file from beginning to end.

Also distinguish between rotating a video and changing how a device displays it. Rotating the Mac screen or resizing a playback window does not correct the saved movie. Conversely, some players may honor orientation information even when another app does not, which is why checking the exported file in more than one player can help diagnose a discrepancy.

Frequently Asked Questions

Can I rotate a video on a Mac without installing an app?
Yes. QuickTime Player is included with macOS and can rotate a clip using its Edit menu. The available save and export options depend on the file and macOS version.

How do I rotate a video 180 degrees?
Rotate it twice by 90 degrees in the same direction. Check the result in playback before saving or exporting.

Can I rotate a video from portrait to landscape?
Yes, but rotating the image changes its orientation; it does not automatically guarantee a full-screen landscape result. The project’s frame may crop the image or leave borders, so inspect the crop before export.

Will rotating a video reduce its quality?
The rotation itself is not the main concern. Exporting may re-encode the clip, which can change quality or file size. Preserve the original and use a suitable export resolution.

How do I undo a rotation?
In Photos, reopen the edit and use its revert option. In an editor project, rotate back or remove the edit. If you overwrote or replaced a file, recovery depends on whether an original copy or backup remains.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.