Rotate Image

An image rotator turns a photo around its center by a set number of degrees, either in fixed quarter turns or by any custom angle. This tool offers both: one-click 90, 180, and 270-degree buttons for standard orientation fixes, plus a free-angle slider for straightening shots that came in a few degrees off level. A key detail is how it treats the canvas. When you rotate by an angle that is not a multiple of 90, the bounding box of the image grows, and naive rotation would clip the corners. This tool automatically expands the canvas to fit the full rotated image, so nothing is cut off, and the freshly exposed corners are left transparent on PNG or filled on formats without an alpha channel. The math behind a quarter turn is simple pixel rearrangement: a 90-degree rotation maps each pixel to a new row and column with no resampling, which means those turns are effectively lossless. Free-angle rotations are different. Because pixels no longer land on a clean grid, the canvas must resample and re-render the image, which introduces a small amount of interpolation and, for lossy formats, a re-encode. The quality stays high, but a 7-degree straighten is not bit-for-bit identical the way a 90-degree turn is. A live preview updates as you drag the slider so you can confirm the orientation before exporting. Everything runs in your browser on the HTML canvas with no upload, which matters for sensitive scans such as IDs, passports, or medical forms that you would rather not send to a server. It accepts JPG, PNG, and WebP. If you want the result trimmed back to the original frame after a tilt correction, follow up with a crop.