Why blur before you share
Screenshots and photos carry more than you mean to send: an NID or passport number, a bank balance, a home address, a child's face, a colleague's email. Covering those parts before sharing takes ten seconds here, and the covered pixels are genuinely replaced — not hidden behind a layer someone can peel off.
The three effects
- Blur — looks natural; fine for faces and backgrounds.
- Pixelate — the familiar mosaic. Use a large block size; a light pixelation of text can sometimes be reversed.
- Black box — the only one that removes the information completely. Use it for numbers and names.
How to use it
- Drop the photo in, or paste a screenshot straight from the clipboard.
- Drag a box over each area to cover. Add as many as you need; Undo removes the last one.
- Download. The effect is baked into the pixels of the saved file.
For anything sensitive, use the black box
Researchers have shown that blurred and lightly pixelated text can sometimes be recovered, because the original pixels still influence the result. For an account number, an ID or a signature, cover it in solid black. For faces, a strong blur is normally enough.
What else a photo gives away
- EXIF data can include the exact location and time. Check it with the EXIF viewer and strip it.
- Reflections, name badges, calendars and screens in the background often reveal more than the subject.
- Saving as JPG re-encodes the whole picture; the covered areas stay covered, but the quality changes slightly.
Frequently asked questions
How do I blur a face in a photo online?
Drop the photo above and drag a box over the face. Choose blur or pixelate, adjust the strength, and download the result — nothing is uploaded.
Can a blur be reversed?
A light blur or coarse pixelation over text can sometimes be partly recovered. For account numbers, IDs and signatures, use the black box instead.
Does it keep the original quality?
The untouched parts stay as they were. A JPG is re-encoded at high quality when saved; a PNG stays lossless.