Adjust brightness & contrast
Increase or decrease image brightness and contrast right on your machine. Images never leave your machine.
Images are processed on your machine — no file is uploaded to any server
The brightness and contrast tool helps you rescue photos that are too dark, washed out, or lacking visual punch — drag the sliders to raise or lower brightness and contrast, and apply the change to several images at once.
Everything runs right on your device — your images are never uploaded to a server.
How to adjust image brightness and contrast
- 1Select images
Drag and drop or click to select one or more JPG, PNG, or WebP images.
- 2Drag the sliders
Adjust brightness and contrast as you like (click Reset to return to 0).
- 3Adjust & download
Click Adjust — download each image individually or download them all as a ZIP.
Frequently asked questions
Does adjusting brightness send my images over the internet?
Everything runs right in your browser — your files are never uploaded to any server, keeping them completely private.
Does adjusting brightness damage the original image?
No. The tool creates a new output image; the original on your device is left unchanged. You can readjust or click Reset at any time.