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Soften an image, or a chosen part of it, with an adjustable Gaussian blur. The usual reason is privacy — hiding a face, a car number plate, an address on an envelope or a name in a screenshot before sharing it. The other common reason is design: a heavily blurred photo makes a good background for text that needs to stay readable. Set the radius, see the result immediately, download when it looks right.
How it works
- Drop in your image.
- Choose whether to blur the whole picture or drag a box over just the area that needs covering.
- Set the blur radius. Small values soften; large values make the content unrecognisable.
- Download the blurred image.
Good to know
If you are blurring something to hide it, use a large radius and check the result at full zoom. A light blur looks like it has obscured the text, but the underlying shapes survive and both software and a determined person can often read through it — this is a well-documented way that redactions fail. The safe approach for anything genuinely sensitive is a radius large enough that the area is a flat smear with no structure left, or covering it with a solid block instead of blurring it at all. Note also that blurring edits the visible pixels only; if the original photo carries GPS coordinates in its metadata, blurring the street sign does not remove them, and the metadata tool does.
Frequently asked questions
Can a blurred face be recovered?
A light blur sometimes can be, because the information is reduced rather than destroyed. A strong blur that leaves no visible structure cannot be meaningfully reversed.
Can I blur only part of the image?
Yes. Drag a box over the area and only that region is blurred, leaving the rest of the picture sharp.
Does blurring change the file size?
Usually it shrinks it. Blurring removes fine detail, and fine detail is what costs the most bytes to store.
Is the image uploaded to a server?
No. The blur is applied in your browser, which matters here — the whole point is often that the picture is sensitive.