Blur Brush

Blur Brush blurs faces, license plates or text in a photo by brushing over them, rendered on an HTML canvas in your browser so the image is never uploaded.

Paste image (Ctrl+V), drag and drop, or click to upload

At a glance

Accepts
PNG, JPG, WebP, GIF and other images your browser decodes
Outputs
A blurred image you download or copy to the clipboard
Where it runs
Entirely in your browser, on your device
What leaves your device
Nothing - the file never leaves your device
Limits
No size or count cap; bounded by your device's memory
Account
Not required - there is no sign-up
Price
Free, with no watermark and no usage cap

Paint over faces, license plates, ID numbers, or anything else you want hidden before sharing a photo or screenshot. Click and drag over an area to blur it - the blur is applied directly on an HTML canvas using the browser's own canvas filter, so the image never leaves this tab and there's nothing to install. It's built for quick, one-off redactions, not batch processing a folder of files.

How to use it

  1. Paste (Ctrl+V), drag and drop, or click to upload an image.
  2. Click and drag over any area you want blurred - the brush size scales automatically to your image's resolution.
  3. Press Ctrl+Z if you need to undo the last stroke.
  4. Download the result or copy it straight to your clipboard once you're happy with it.

Frequently asked questions

Does the image get uploaded anywhere while I'm blurring it?

No - the blur brush runs entirely on an HTML canvas in your browser. The image is never sent to a server at any point.

Can I undo a blur stroke if I make a mistake?

Yes - press Ctrl+Z to step back to the state before your last stroke.

What image formats can I use?

Anything your browser can decode - PNG, JPEG, WebP, GIF, and more.

Can I control how big or strong the blur is?

The brush radius scales automatically with your image's resolution - there's no manual size or strength control.

Once I download the image, can I recover what was under the blur?

No - the blur is baked permanently into the exported pixels, the same as a real redaction. Recovery is only possible before export, using undo.

Does it work on a phone or tablet?

Yes - the brush uses pointer events, so it works the same with a mouse, trackpad, touchscreen, or stylus.