Adjust Brightness & Contrast
How to Adjust Brightness & Contrast
- 1. Upload Photo: Select a JPG, PNG, or WebP image.
- 2. Set Brightness: Adjust brightness from -100 to +100.
- 3. Set Contrast: Adjust contrast from -100% to +100%.
- 4. Apply: Click "Apply Adjustment".
- 5. Download: Save your adjusted image.
Brightness Contrast Benefits
Precise Control
Fine-tune brightness and contrast independently.
Real-time Preview
Adjust the controls and review the resulting tonal changes.
Photo Enhancement
Adjust tonal visibility in light, dark, or low-contrast images.
100% Free
No registration or payment needed.
Frequently Asked Questions
What's the difference between brightness and contrast?
Brightness adds or removes light overall. Contrast adjusts the difference between light and dark areas.
When should I adjust these?
Use brightness for overexposed/underexposed photos. Use contrast for flat or dull images.
Works on all images?
Yes, works on any photo format.
Can I use commercially?
Yes, adjusted images can be used commercially.
Is data private?
Yes, local browser processing only.
Output quality?
The processed result is exported as a JPEG. Visible quality depends on the source image and processing.
Related Adjustment Tools
How brightness and contrast adjustment works
Upload an image and adjust the brightness and contrast controls. The browser updates pixel values to make the image lighter or darker and to increase or reduce tonal separation. Preview the result before downloading it.
Browser-based processing
The visual effect is generated with browser image and Canvas processing. The source image is rendered, pixel values are adjusted, and the result is prepared for download through the existing image workflow.
What the effect changes
Brightness shifts overall lightness, while contrast changes the separation between darker and lighter tones.
Tips for better results
Use a clear source image and compare the processed preview with the original. Strong effect settings can intentionally remove subtle detail or exaggerate edges and tonal changes.
brightness and contrast adjustment works FAQ
Does this effect increase image resolution?
No. It changes existing pixel values and does not recreate missing detail or increase the source resolution.
Can I preview the effect first?
Yes. Review the available preview before downloading the processed result.