Image Brightness Adjuster
Lighten dark photos or tone down overexposed images.
Drop your file here
or
JPG, PNG, WebP, GIF, BMP · Upload a file up to 40 MB
Your files are secure and private. Everything is processed on your device.
How it works
- Upload imageDark or bright photo
- Adjust sliderIncrease or decrease brightness
- Download imageCorrected picture
What this tool does
- Pixel luminance control
- Real-time preview
- Zero data upload
Supported formats
- JPG
- PNG
- WebP
- GIF
- BMP
Maximum file size: 40 MB.
Frequently Asked Questions
Yes. Re-encoded at high resolution.
Privacy and security
Your file is read directly from your device and processed in your browser. It is never uploaded to a server, so there is no copy for us to keep, share or lose. Closing the tab discards everything. If you want to check this yourself: open your browser’s developer tools, switch to the Network tab, and use the tool — you will see no request carrying your file or input leave the page.