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Image Brightness Contrast

Fine-tune photo brightness and contrast with instant preview. Make a dark image clearer or increase contrast before downloading the edited PNG.

Image Tools Runs locally No data sent
brightnesscontrastphoto correctionPNG
Brightness
Brightness0
Contrast
Contrast0
Preview
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JPG | PNG | WebP | GIF

What is Image Brightness Contrast?

Image Brightness Contrast lets you quickly improve a photo or screenshot by changing overall lightness and tonal separation. It is useful for dark images, low-contrast screenshots, and fast corrections when you only need cleaner visibility.

How to Use Image Brightness Contrast

  1. Upload one image into the tool.
  2. Adjust brightness to lighten or darken the image.
  3. Adjust contrast to change tonal separation.
  4. Download the corrected PNG when the preview looks right.
Understand Brightness and Contrast ▾
Example
Input Upload a dim screenshot and set brightness to 20 with contrast to 15
Output Download a clearer PNG with more readable midtones and edges
Common Use Cases
  • Brighten a dark screenshot before sharing it
  • Increase contrast to make text or UI clearer
  • Reduce harsh contrast in an over-edited image
  • Quickly correct exposure without opening a full editor
Why Use This Tool
  • Useful for quick exposure fixes and clearer screenshots.
  • Lets you tune both lightness and contrast without a full editor.
  • Runs locally so your images stay on your device.
Frequently Asked Questions
What does brightness change?

Brightness shifts the overall lightness of the image up or down.

What does contrast change?

Contrast increases or decreases the separation between darker and lighter tones.

Can I use both sliders together?

Yes. Most users make small brightness and contrast adjustments together for a cleaner result.

Is the image uploaded anywhere?

No. All brightness and contrast processing happens in your browser.