Brighten or darken part of an image locally
Upload a photo, choose a rectangle, and raise or lower exposure only inside that area. Processing stays in your browser with Canvas, so the original file is not uploaded.
Use this tool freeBrowser tool
Exposure adjuster
Runs locally in your browser. The selected image is not uploaded by this tool.
JPEG, PNG, and WebP are supported by default. Specialized converters restrict the file picker to their required input format.
How to use
Upload an image
Choose a JPEG, PNG, or WebP file from your device.
Select the area
Move the region sliders to cover the part of the image that needs exposure correction.
Adjust exposure
Drag the exposure slider or choose a quick fix such as Lift shadows, Tame highlights, or Subtle brighten.
Download
Export the adjusted image from the browser.
Features
Local exposure region
Set the X, Y, width, and height of the adjustment area as percentages of the image.
Brighten or darken
Use a negative value to darken bright areas or a positive value to lift shadows, with quick presets for common fixes.
Client-side processing
The image is decoded, adjusted, previewed, and exported with browser APIs.
After this task
After this free tool, open Ai Enhance for the next AI editing workflow.
Continue with Ai EnhanceSpecifications
| Input formats | JPEG, PNG, WebP |
| Output formats | JPEG, PNG, WebP |
| Exposure range | -100% to +100% |
| Processing | Client-side Canvas |
Related Magic Eraser Tools
Common questions
Does this change the whole image?
+
Only if you set the region to 100% width and height. The region controls let you correct a shadowed face or bright window without changing every pixel.
Are my images uploaded?
+
No. The adjustment runs locally in your browser using File, Canvas, Blob, and object URL APIs.
Need automatic lighting repair?
Use AI Enhance after this tool when you want automatic exposure, color, and detail improvements across the whole photo.
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