Image Brightness Adjuster
Adjust the brightness of any image instantly. Upload an image, use the slider to brighten or darken it, and download the result.
Click to upload or drag and drop an image
Supports PNG, JPEG, GIF, WebP, BMP
Why use this tool?
Adjusting image brightness is a common task for improving photos or preparing images for web use. This tool provides instant brightness adjustment with real-time preview.
- Real-time preview — see brightness changes as you adjust the slider.
- Side-by-side comparison — compare original and adjusted images.
- Easy download — save the adjusted image with one click.
- Privacy — all processing happens in your browser. No images are uploaded to any server.
How to use
- Click the upload area or drag and drop an image to load it.
- Use the brightness slider to increase or decrease brightness.
- View the original and adjusted images side by side.
- Click "Download Image" to save the adjusted version.
Frequently Asked Questions
Yes, the MushTools Image Brightness Adjuster is completely free with no sign-up required. All processing happens in your browser.
This tool supports common image formats including PNG, JPEG, GIF, WebP, and BMP.
No. Everything runs client-side in your browser. Your images never leave your device.