Rotate a video 90, 180 or 270 degrees clockwise - locally, usually without re-encoding, no upload.
Running locally on your device ...
Running locally on your device ...
0%
Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
A phone video shot sideways, or a screen recording that ended up the wrong way round - this tool rotates the picture in 90-degree steps without hurting image quality.
Important and honest: where possible, the rotation is stored only as a metadata flag in the container (the actual picture data stays unchanged) - exactly how a phone marks its own video as "rotated". Only when the target format cannot express that does this tool re-encode the rotated pixels.
Everything runs locally in the browser with mediabunny (MPL-2.0, self-hosted, no third-party CDN) on the browser's native WebCodecs API. Your video is not uploaded.
| Input formats | MP4, M4V, MOV, MKV, WEBM |
|---|---|
| Output format | MP4 |
| Batch processing | No |
| Processing | Locally in your browser (WebCodecs) |
| File upload | None |
Limitations: Only fixed 90-degree steps, no free angles. Audio track stays unchanged. One file per run, ~600 MB limit (the browser tab's memory limit: without streaming support the file must fit in whole, with streaming it rises to about 1 GB). Needs a secure context (https) and browser WebCodecs support.
No. The whole rotation happens locally in your browser.
Usually not: where possible, only a rotation flag is set in the container - the picture data stays untouched.
No. Only 90, 180 or 270 degrees - that covers practically every sideways/upside-down case.
No, the audio track stays completely unchanged.
The tool reports that honestly as an error - never a silent failure.
Trim video · Convert video · Video thumbnail · Video watermark · Video speed · Remove video audio