Yes, with no watermark and no page limit.

Does it need an account?

No. There is no account system.

Is my file processed on my device?

Yes. The file is read by your browser and never uploaded. There is no server to send it to.

What formats are supported?

JPG, PNG and WebP in. The same format out, so nothing else about the file changes.

Radius from 1 to 40 pixels, applied to the whole image. There is no selective or partial blur here.

Does it work on mobile?

Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.

Does it work offline?

Yes, once the page has loaded. The tool keeps working with no network connection.

Can I blur only part of the image, like a face?

Not on this page. It blurs the whole image evenly. To obscure one region, crop it out, blur it, and place it back in an editor, or use the pixelate tool, which is the more common choice for censoring.

Is a blurred face safe to publish?

Treat it as a soft measure rather than a guarantee. A light blur can sometimes be partially reversed because the underlying detail is still present in a smeared form. For anything that genuinely matters, cover the area with a solid block instead.

Is this a real Gaussian blur?

It is three box blur passes, which mathematically converges on a Gaussian and looks identical at these radii. The difference is invisible and it runs several times faster.

Drop images hereor choose files from this deviceChoose filesJPG, PNG and WebP · never uploaded · no image count limit

IMAGE -> BLURRED · Local tool

Blur image

Apply an adjustable blur to an image.

Last updated 3 September 2026

01 / Your device
the file stays here
02 / Browser memory
the work runs locally
03 / Your downloads
the result arrives here

How it works / no cloud

A conversion engine, not an upload form.

filetity runs a three-pass box blur over the pixels in browser memory, which is the standard cheap approximation of a Gaussian blur and is indistinguishable from one at these radii. Each pass is separable, a horizontal sweep then a vertical one, which is what keeps a large photo instant instead of hanging the tab.

Offline ready
Installable app
No file limit queue

Straight answers

No accordion. Nothing hidden.

Is it free?: Yes, with no watermark and no page limit.
Does it need an account?: No. There is no account system.
Is my file processed on my device?: Yes. The file is read by your browser and never uploaded. There is no server to send it to.
What formats are supported?: JPG, PNG and WebP in. The same format out, so nothing else about the file changes.
What are the limits?: Radius from 1 to 40 pixels, applied to the whole image. There is no selective or partial blur here.
Does it work on mobile?: Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.
Does it work offline?: Yes, once the page has loaded. The tool keeps working with no network connection.
Can I blur only part of the image, like a face?: Not on this page. It blurs the whole image evenly. To obscure one region, crop it out, blur it, and place it back in an editor, or use the pixelate tool, which is the more common choice for censoring.
Is a blurred face safe to publish?: Treat it as a soft measure rather than a guarantee. A light blur can sometimes be partially reversed because the underlying detail is still present in a smeared form. For anything that genuinely matters, cover the area with a solid block instead.
Is this a real Gaussian blur?: It is three box blur passes, which mathematically converges on a Gaussian and looks identical at these radii. The difference is invisible and it runs several times faster.

Keep working locally

4 available · more coming