Blur or pixelate part of an image

FileGizmo obscures selected areas of a JPG, PNG, or WebP image without uploading it. Add and resize regions over faces, addresses, account numbers, licence plates, or other visible details, position each one on the full image, and pick blur, pixelation, or permanent redaction for that area. Up to fifty areas can be handled in one pass, each as a rectangle or an ellipse.

Blur and pixelation are cosmetic, and the difference from redaction matters. Both keep a smoothed version of the original detail in the output, and a short, predictable string behind coarse blocks, such as a number plate or a six-digit reference, is the kind of thing that can sometimes be narrowed down by testing which candidates produce the same pattern. Permanent redaction paints a solid opaque block over the area instead, so nothing of what sat underneath survives in the downloaded file. Use it for anything that would cause harm if it were recovered.

Selections are converted from preview coordinates to source pixels inside a dedicated browser worker, so each effect lands on the full-resolution region rather than on the smaller copy you see on screen. Choose the strength to match the region as well: a light blur across a face in a wide shot can still leave it recognisable at full zoom, and picking strong costs nothing.

This works on pixels, not on documents. Covering a figure in a screenshot of a spreadsheet or a PDF hides it only in the exported picture, while the source file still holds the text and the numbers behind it. These effects do not remove metadata either, so strip EXIF data separately and keep the untouched original somewhere private.

Zoom into the finished image before publishing. The usual failure is not a weak effect but a missed one: a reflection in a window, a second copy of the address further down the page, or a name left in the corner of a screenshot.

The image never leaves the device, which is the point of doing this locally. Uploading the very photograph you are trying to make safe hands the unobscured original to a service you cannot inspect, in exchange for hiding it from everyone else.