When you find your videos sideways or upsidedown, do not bend your neck or turn over your monitor. Check out this tutorial below to rotate a video.

1.Rotate Video Online
There are numerous simple online applications to help rotate or flip videos with a few clicks. You can use RotateMyVideo or some other free service to rotate video online.

2.Rotate Video with Media Player
Up to this day, almost all media players are equipped with the feature to roate a video. For frequently-used VLC Player. Follow this step: Right click on the video > Select "Tools" and go to Effect and Filters > Go to "Geometry" under "Video Effects" tab > Check the "Transform" box or "Rotate" box. Different media players have different operating steps.

3.Rotate Video with Software
You can rotate videos with Windows Movie Maker or other freeware with simple clicks.

Very useful suggestions

You can also download GoPro Studio for free....it also does a real nice job of rotating video.

Cool, if there're some detailed pics could be more helpful!

Hello, Joyoshare Media Cutter also works well as great video rotator that can rotate any video at a fast speed with high original quality retained.