How do you rotate or flip a video?
Rotate left and Rotate right turn the picture in steps of 90 degrees. Press twice to turn the video upside down, or three times for a quarter turn in the other direction. The preview shows the new orientation right away, so you can judge it before exporting.
Mirror reverses the picture from left to right, like a reflection. Flip turns it upside down. You can combine both switches with the rotation buttons, and every setting applies to the preview and to the exported file.
How to rotate a video
- Drop your video on the page, or choose it from your computer.
- Open the Convert tab.
- Press Rotate left or Rotate right until the picture is upright, and use Mirror or Flip if needed.
- Check the preview, press Start and download your MP4.
Technical specs
| Output | MP4: video H.264, audio AAC 128 kb/s |
|---|---|
| Processing | In your browser (FFmpeg.wasm), 0 files uploaded |
| Large files | Up to about 1.6 GB with FFmpeg, then the browser engine in real time |
| Output formats | 14 formats (MP4, WebM, MKV, MOV, AVI and more, plus GIF, MP3, WAV) |
| Price | Free, no account, no watermark added |
Why is my video sideways?
Phones record in the orientation you hold them, and some players or editors ignore the hint stored in the file. The result is a clip that lies on its side or shows upside down on another device. Rotating it here fixes the picture itself.
Mirroring helps with a selfie where the text appears reversed, or when you want a clip to face the same direction as another shot. Flip fixes footage from a camera mounted upside down, for instance on a ceiling or a desk stand.
Which output and engine do you get?
The rotated video is exported as MP4, with H.264 video and AAC audio at 128 kb/s. Rotating means encoding the video again, so a very small quality change is possible. Keep the original until you have checked the result. You can also trim or compress the clip in the same session.
FFmpeg.wasm does the work. It downloads on your first export and your browser caches it. If it cannot start, or the file is above about 1.6 GB, the native engine takes over with Canvas and MediaRecorder and runs in real time. If your browser cannot play the file, as with AVI, FLV or WMV, FFmpeg still converts it, but you get no live preview.
Questions
Is it free to rotate a video?
Yes. There is nothing to pay and no account to create. This site does not add a watermark. The video is processed in your browser and is never uploaded.
Can I rotate by an angle other than 90 degrees?
No. The buttons turn the picture in steps of 90 degrees. Press Rotate left or Rotate right several times to reach 180 or 270 degrees. For a small tilt, use an editor with free rotation.
What is the difference between Mirror and Flip?
Mirror reverses the picture from left to right, as a mirror would. Flip turns it upside down. Each one is a switch, so you can use one, both or neither, along with the rotation buttons.
Does the rotation apply to the exported file?
Yes. The orientation shown in the preview is written into the exported file. The result is saved as an MP4 and your original stays unchanged on your computer.
Does the video get uploaded?
No. Everything runs on your device with FFmpeg.wasm, or with a native fallback engine if FFmpeg cannot start. The file never leaves your computer, and the first export only downloads the engine itself.