Highlight a PNG Region
Dim everything around a chosen region to spotlight it. 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 Highlight a PNG Region
- 1. Add the PNG to spotlight. Load the screenshot or photo containing the detail you want to draw attention to, such as a specific button or element in a larger image.
- 2. Set the region left, top, width and height (px). Define the rectangle to spotlight by its position and size, marking exactly the area that should stay at full visibility.
- 3. Set the Dim surroundings (%). Choose how much darker everything outside the region becomes. A moderate value keeps context visible; a high value makes the spotlighted area the sole focus.
- 4. Download the highlighted PNG. Download the result once the region stands out clearly against the dimmed background. The spotlighted area itself stays untouched at full brightness.
When to use Highlight a PNG Region
Highlight a PNG Region dims everything around a chosen rectangle to spotlight it, drawing the viewer's eye to one specific detail without cropping the rest of the image away. It keeps surrounding context visible while making clear exactly what matters.
- Pointing to a UI element in a screenshot. A tutorial screenshot needs to draw attention to one specific button among many on a busy interface. Spotlighting that region makes it obvious at a glance without extra arrows or text.
- Emphasizing a detail in a product photo. A product photo has a small feature, like a stitching detail, that deserves attention in a listing. Dimming the rest of the photo keeps focus on that one area.
- Directing focus in a before-and-after comparison. A comparison image shows a repaired area that needs to stand out clearly from the rest of the frame. Spotlighting that region highlights the change without cropping the surrounding context.
Examples
Spotlight a detail
Input
screenshot.png + region (40, 80, 300×200)
Output
screenshot.png with everything outside the region dimmed
About the Highlight a PNG Region tool
Highlight a PNG Region is a free online tool that works entirely inside your web browser. Dim everything around a chosen region to spotlight it. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 108 PNG utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 5 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.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Highlight a PNG Region cost anything?
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?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
Which files does Highlight a PNG Region 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?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
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.