About the Censor Image
Screenshots that go into a bug report, a support ticket or a public thread almost always carry something that should not travel with them: an account number, a home address, a colleague who never agreed to appear. This tool paints over one rectangle of the picture and hands back a clean copy. The rectangle is described in percentages of the width and height, so the same four numbers keep working if you later swap in a larger version of the same screenshot.
Four masks are available. Blur runs three box passes over the selected pixels, which behaves like a Gaussian and leaves no readable structure once the radius passes a few pixels. Mosaic averages the region down to a coarse grid and scales it back up with smoothing switched off. Static noise replaces every pixel with a fresh random grey. Solid bar simply fills the rectangle, and that is the only option that is truly irreversible by any amount of image processing.
A warning worth repeating: a light blur or a large mosaic block can sometimes be attacked, because the original pixel values still influence the averages. If the hidden text is short and predictable, such as a six digit code, use the solid bar. The result is re-encoded from a canvas, so the original EXIF block is dropped along the way. To read that metadata before you remove it, open EXIF Viewer.
How to use
- Drop the picture on the left pane, or paste it straight from the clipboard.
- Set Left, Top, Width and Height as percentages until the mask sits over the part you want gone.
- Choose a mask style and push Strength up until nothing readable survives.
- Save the copy with Download and share that file instead of the original.
Common questions
- Can a blurred area be recovered later?
- A weak blur sometimes can, because the surrounding averages still carry information. For short codes or names, pick the solid bar, which throws the pixels away completely.
- Why are the coordinates in percent rather than pixels?
- Percentages keep the same mask valid when you re-export the screenshot at a different scale, which is common when a retina capture is resized.
- Does the censored copy still hold camera metadata?
- No. The picture is redrawn on a canvas and re-encoded, so EXIF, GPS tags and the original colour profile are not carried over.
- Can I hide more than one area?
- Run the tool once, download the result, then drop that file back in and mask the next rectangle. Each pass builds on the previous one.