Highlight a JPG 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 JPG Region
- 1. Upload the JPG photo. Drop or browse for the .jpg or .jpeg file with a detail you want to spotlight. It loads into the preview so you can identify the coordinates of that detail.
- 2. Set the Region left, top, width and height. Enter the area to spotlight using Region left (px), Region top (px), Region width (px) and Region height (px), defining the rectangle that should stay fully visible.
- 3. Set Dim surroundings. Adjust Dim surroundings (%) to control how much everything outside the region gets darkened. Higher values make the spotlighted area stand out more sharply.
- 4. Download the spotlighted photo. The tool dims everything outside your chosen region while keeping it fully visible. Download the result once the spotlight draws the eye where you intended.
When to use Highlight a JPG Region
Highlight a JPG Region dims everything around a chosen rectangle to draw attention to that specific area, effectively spotlighting one detail within a larger photo without cropping the rest away.
- Drawing attention to a UI element in a screenshot. A tutorial screenshot needs readers to focus on one button among many; dimming everything except that region makes the button impossible to miss.
- Spotlighting a person in a group photo. A group photo needs one person emphasized for a feature story; highlighting the region around them dims the rest without removing anyone from the frame.
- Emphasizing a defect in an inspection photo. A quality control photo needs a small defect visually emphasized for a report; dimming the surrounding area makes the flaw immediately obvious to reviewers.
- Focusing a map or diagram photo on one section. A photographed map needs one neighborhood highlighted for a presentation, so dimming everything outside that region keeps the audience's attention where it belongs.
Examples
Spotlight a detail
Input
screenshot.jpg + region (40, 80, 300×200)
Output
screenshot.jpg with everything outside the region dimmed
About the Highlight a JPG Region tool
Highlight a JPG Region does its work locally, right in the browser. Dim everything around a chosen region to spotlight it. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the JPG Tools collection on EditSafely, a set of 145 small, focused JPG utilities that share the same instant, private workspace.
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.
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
Does Highlight a JPG 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 JPG Region accept?
It accepts JPG and JPEG photos. 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.