Photos come out sideways for a familiar reason: the camera recorded the orientation in an EXIF tag rather than in the pixels themselves, and some viewers honour that tag while others ignore it. The photo looks upright on your phone and lands on its side in a document. Rotating the pixels for real removes the ambiguity, so the image is correct everywhere.
This tool rotates in ninety-degree steps, which is the only rotation that is geometrically exact — every pixel maps to another pixel with no interpolation and no blurring. Each image in a batch can be turned independently, so a folder of mixed orientations can be sorted out in one pass.
Rotation is applied in your browser and the corrected file is saved straight to your downloads. No copy is uploaded.
Turning an image by a right angle is a pure rearrangement: pixel (x, y) becomes pixel (y, x) with an axis flipped. Nothing is averaged, nothing is invented, and the file can be re-encoded with no additional loss beyond the encoding step itself.
An arbitrary angle — straightening a crooked scan by three degrees, say — requires resampling every pixel from a weighted blend of its neighbours, which softens the whole image and leaves transparent or blank wedges at the corners that have to be cropped away. That is a genuinely different operation, and doing it well needs an interactive preview rather than a batch action.
The camera stored the orientation as an EXIF tag instead of rotating the pixels. Software that reads the tag displays it correctly; software that ignores it does not. Rotating here changes the actual pixels, so it looks the same everywhere.
A ninety-degree rotation rearranges pixels exactly, with no interpolation. The only change comes from re-encoding the file afterwards, which is done at JPEG quality 0.92 — above the level where any difference is visible.
No. This tool works in ninety-degree steps, which are lossless. Straightening a slightly crooked image needs resampling and cropping, and is better done in an image editor with a live preview.
Yes. Select individual thumbnails and rotate them separately, then finish once every image is the right way up.
Yes. JPG stays JPG and PNG stays PNG. Only the pixel orientation changes.
No. The rotation is a canvas operation running in your browser, and the result is written directly to your downloads folder.
