Free Image Brightness Editor | Adjust Brightness & Contrast Online

How to Adjust Brightness & Contrast

Upload an Image: Drag your photo into the upload area or click the "Select Image" button.
Adjust the Sliders: Move the "Brightness" slider to make the image lighter or darker. Use the "Contrast" slider to make the light areas lighter and dark areas darker.
Download Your Photo: When you're happy with the result, click the "Download" button to save the enhanced image.

Simple, Powerful Image Enhancement

Dual Control: Adjust both brightness and contrast to achieve the perfect balance of light and detail.
Live Instant Preview: See your changes apply to the image in real-time, no waiting.
Non-Destructive: Your original photo remains untouched. Our tool creates a new, adjusted version for you to download.
Privacy First: All image processing is done in your browser. No files are uploaded to our servers.
Supports Your Files: Works perfectly with JPG, PNG, and WebP image formats.

Ideal for Common Photo Problems

Fix Underexposed (Dark) Photos: Easily lighten up photos taken in low light or with the wrong camera settings.
Correct Overexposed (Bright) Photos: Tone down images that are too bright or washed out, recovering lost detail.
Enhance Flat or Dull Images: Increase the contrast to make your photos pop with more vibrant and defined colors.
Prepare Images for Print: Adjust brightness and contrast to ensure your photos look as good on paper as they do on screen.

Frequently Asked Questions (FAQ)

What is the difference between Brightness and Contrast?

Brightness uniformly makes every pixel in your image lighter or darker. Contrast increases the difference between the light and dark areas, making highlights brighter and shadows darker to enhance detail and depth.

Will this tool reduce the quality of my photo?

Our tool uses high-quality browser filters to make adjustments, which preserves as much detail as possible. You can make significant improvements to your photos without a noticeable loss in quality.

Is this tool secure to use with my personal photos?

Yes. We value your privacy. The entire process happens on your device. Your images never leave your computer and are never seen by us.