Remove metadata from an image

Lossless mode edits the file container directly and changes zero pixels — the fastest, safest option for JPG and PNG. Re-encode mode decodes and re-compresses the image, which also removes metadata but introduces the same small quality trade-off as any re-encode.

Not by default. An image taken sideways is stored sideways and relies on a single EXIF Orientation tag to display upright, so removing all of EXIF would tip it over in every viewer. Lossless mode keeps a minimal EXIF block containing only that tag — no GPS, no camera model, no timestamps — and tells you on the page when it has done so. You can turn that off if you want nothing at all.

Yes. It edits the file's container — dropping whole JPEG APP segments or PNG metadata chunks — and copies the compressed image data through untouched. Decoding the original and the cleaned file gives byte-identical pixels.