Yes. Rotating and flipping images on FormatGrid is completely free, with no watermarks, file limits, or account sign-up required.
Nowhere. Your images never leave your device — FormatGrid never uploads, transmits, or stores them on any server. All processing happens locally in your browser's memory and is discarded once you close or refresh the tab.
Auto Orient reads the EXIF orientation tag embedded in your image and automatically rotates/flips it to the correct upright orientation. This fixes photos that appear sideways or upside‑down after being taken with a phone or camera.