Hide an Area in a PNG
Black out or pixelate a sensitive region of a PNG. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Hide an Area in a PNG
- 1. Add the PNG to redact. Load the document or screenshot containing a sensitive area you need to cover, such as an address, ID number or private detail.
- 2. Set the region left, top, width and height (px). Define the exact rectangle to cover by its position and size, so the redaction lands precisely over the sensitive content and nowhere else.
- 3. Pick Hide with: Solid block or Pixelation. Choose a Solid block with a set Block color for a fully opaque cover, or Pixelation with a chosen block size to obscure detail while keeping rough shapes visible.
- 4. Download the redacted PNG. Download the result once the sensitive region is irreversibly covered. The rest of the image stays exactly as it was outside the redacted area.
When to use Hide an Area in a PNG
Hide an Area in a PNG blacks out or pixelates a specific rectangular region, letting you cover sensitive information in a document or screenshot before sharing it. Unlike a simple overlay in an editor, the redaction is baked into the pixel data itself, not a movable layer someone could peel away.
- Redacting a personal address before sharing. A scanned document needs to be shared publicly, but it shows a home address that should stay private. Covering that exact region with a solid block removes it permanently from the file.
- Blurring an account number in a screenshot. A support ticket screenshot shows a bank account number in one corner of the screen. Pixelating that region obscures the digits while keeping the rest of the screenshot fully legible.
- Covering a face in a crowd photo. A photo taken in public includes a bystander's face that should not be identifiable when posted online. Applying pixelation over that region anonymizes it before publishing.
- Hiding an API key visible in a code screenshot. A screenshot shared in a bug report accidentally shows a live API key in a terminal window. Covering that exact region with a solid block prevents the key from leaking.
Examples
Redact an address
Input
document.png + solid block over the address line
Output
document.png with the region irreversibly covered
About the Hide an Area in a PNG tool
Hide an Area in a PNG does its work locally, right in the browser. Black out or pixelate a sensitive region of a PNG. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the PNG Tools collection on EditSafely, a set of 108 small, focused PNG utilities that share the same instant, private workspace.
You can shape the output with 7 settings, including Region left (px), Region top (px), Region width (px) and Region height (px), and the result refreshes the moment you change one. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Hide an Area in a PNG free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
Which files does Hide an Area in a PNG accept?
It accepts PNG images. There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.