Rotar / voltear vídeo
90°, 180°, espejo
Sobre esta herramienta
Rotate a video by 90, 180 or 270 degrees, or mirror it horizontally / vertically. The classic fix for footage shot in the wrong orientation - phone videos that came out sideways, dashcam clips that need flipping, or documents recorded upside-down.
The rotation runs locally with FFmpeg-WebAssembly. Audio stays perfectly in sync, and the video is re-encoded so the new orientation is baked in (and won't depend on metadata flags that some players ignore).
Most phone-shot videos store a rotation flag in the container metadata rather than rotating the actual pixels. That works fine in YouTube and modern players, but a surprising number of apps (older Windows builds, many editors on import, some web video tags) ignore the flag and play the video sideways. Privvert applies a transpose filter that bakes the rotation into the pixels themselves, so the new orientation is correct everywhere - no metadata flag involved.
Características
- Rotate 90° clockwise, 180°, 270° / 90° counter-clockwise
- Horizontal flip (mirror) and vertical flip
- Audio kept perfectly in sync
- Reads MP4, MOV, MKV, WebM and most other formats
- Output is H.264 MP4 by default for universal playback
- Browser-only - your footage stays private
- Free and unlimited
Cómo usarla
- Drop in your video.
- Pick the rotation or flip you want.
- Click Apply.
- Download the rotated video.
Todo sucede dentro de tu navegador usando JavaScript y WebAssembly. Tus archivos nunca se suben a un servidor, nunca se almacenan y nosotros nunca los vemos.
Preguntas frecuentes
Yes. Pick 90° clockwise or counter-clockwise depending on which way the phone was held. The output is rotated and baked in, so any player will display it correctly.
Some apps (especially older ones, and many editors on import) ignore the rotation metadata flag. Re-encoding (what this tool does) bakes the rotation into the pixels so it always plays right.
There's a single generational re-encode loss. Use a high quality setting if you plan to keep editing the file.
Not in this tool - only 90° increments and flips. Arbitrary angles introduce black corners and require a fill choice; that's a different workflow.
Yes - a 90° rotation swaps width and height. A 1920×1080 landscape becomes 1080×1920 portrait. Players and social platforms detect the new aspect ratio automatically.
Flipping is a different transform than rotation - it reverses the image left-right or top-bottom without changing dimensions. Common uses: correcting selfie-camera mirroring, or matching footage shot through a periscope or mirror rig.