Adjust image brightness
This tool multiplies pixel brightness by the selected percentage without resizing the source. The complete operation runs in temporary browser memory, so the input is never uploaded or stored by LocalKit.
The input stays available if you need to adjust a setting.
How to use adjust image brightness
- 1
Add the source values or files shown in the workbench.
- 2
Choose the settings for adjust image brightness.
- 3
Run the tool, inspect the local result, then copy or download it.
A realistic example
Lift an underexposed product image to 125% brightness before publishing. The source and generated result remain in this browser tab throughout the operation.
Supported formats and limits
Input: JPG, PNG, WebP. Output: PNG.
- Increasing brightness cannot recover highlight or shadow detail that was not captured.
- Available memory and browser limits still apply to very large inputs.
Questions people ask
What does adjust image brightness change?
This tool multiplies pixel brightness by the selected percentage without resizing the source.
Is any input sent to a server?
No. LocalKit performs this operation in your current browser tab.