Image Brightness Adjuster
Brighten or darken images with a live slider.
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About this tool
Image Brightness Adjuster rescues photos that came out too dark or too washed out. Drag the slider from 0% (pitch black) through 100% (original) up to 200% (much brighter) and watch the change live before committing.
Small adjustments usually look best — pushing brightness too far can blow out highlights or crush shadows. The edit applies at full resolution and never leaves your browser.
How to use
- Upload an image.
- Drag the brightness slider and watch the live preview.
- Settle on a value that looks natural.
- Download the adjusted image.
Frequently asked questions
It helps with mildly underexposed shots. Extremely dark photos will show noise when brightened heavily, since the sensor simply did not capture that detail.
Yes — brightness applies to the color channels and transparency is preserved.
No. The adjustment runs entirely in your browser.