How to Fix a Sideways Video (Rotate / Flip)
Last updated: June 12, 2026
Shot a video on your phone, only to find it's sideways or upside down on your computer? It's a common problem. This guide shows you how to rotate or flip a video to the correct orientation — free, no upload, and the result saves as MP4.
Why orientation gets wrong
Phones record a rotation flag that says how the video was held. Some players and apps ignore this flag, so the video shows sideways or upside down. Re-saving the video with the rotation actually applied makes it play correctly everywhere.
How to fix the orientation
Use our rotate / flip tool. Your video is never uploaded — it's processed in your browser.
- Choose a video (drag & drop).
- Pick a transform: right 90°, left 90°, 180°, flip horizontal/vertical. The preview rotates instantly.
- Export and download the corrected MP4.
Which one should I pick?
| Problem | Fix |
|---|---|
| Tilted 90° clockwise | Rotate left 90° |
| Tilted 90° counter-clockwise | Rotate right 90° |
| Upside down | 180° |
| Mirrored left/right | Flip horizontal |
If unsure, pick right 90° or left 90°, check the preview, and choose whichever looks correct.
FAQ
- Q. Does quality drop?
- A. It re-encodes to apply the rotation, but exports at a quality-preserving setting.
- Q. What's the output format?
- A. MP4, which plays on almost any device and app.
- Q. It says a server is required.
- A. The engine can't run from file://. Use it on the live site (https://).