90°/180°/270° rotate + horizontal flip for sideways phone clips.

Fixing a sideways 1080×1920 phone clip for good

The video rotator on this page turns sideways or upside-down clips upright again — 90, 180 or 270 degrees, plus mirror and vertical flip — without uploading anything. My dashcam exports recorded sideways: a 1080×1920 portrait frame that played on its side on the TV. One tap on Rotate 90° CW and the output came back 1920×1080 horizontal, pixels genuinely turned, playing upright on every device I tried. The fix is permanent, which is the whole point.

Pick the right button for the problem. A dashcam or webcam mounted upside down needs 180°, not a mirror — mirroring would flip the image left-right and scramble anything with text on screen, like street signs or a timestamp overlay. Front-camera selfies that look backwards are the mirror's job instead, since that's a left-right correction. One transform runs per pass; if you need a rotate-plus-flip combination, run the file through twice and accept the second re-encode. It's a small tool with exactly five opinions, and that's why it works — no timeline, no keyframes — just pick the wrongness and reverse it. The whole fix takes less time than finding the cable to plug your phone in.