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Adjust Image Brightness
Brighten or darken an image with a live local preview.
Runs on this deviceFree · no watermarkNo sign-up
Edited locally — your image never leaves this device.
or drop an image here
JPG, PNG, WebP or AVIF · processed locallyYour image will be processed on this device.Quick answer
Brightness scales the visible light values of the image while leaving the original file untouched.
How to use this tool
- Select one image or a batch of images.
- Choose the output settings that fit your workflow.
- Process and download your new image. The original content stays untouched.
Batch-ready
Use the same settings for several files, then download them separately or in a ZIP.