How do I adjust image brightness?

Upload your image, use the Brightness slider to increase or decrease overall lightness, and download the result. The before/after preview updates in real time.

What does the Contrast slider do?

Contrast increases or decreases the difference between dark and light areas. Higher contrast makes darks darker and lights lighter, producing a punchier image.

What does Saturation do?

Saturation controls the intensity of colors. Increase it to make colors more vivid, decrease it for a muted or faded look, or set to -100 for full grayscale.

Can I reset to original?

Yes — the Reset button sets all sliders back to zero (no adjustments).

Brightness & Contrast

Adjust brightness, contrast, and saturation levels with live before/after preview.

Your files never leave your device

Drop your image here or browse

Supports JPG, PNG, WebP, HEIC

How to Brightness & Contrast

Upload your image.
Adjust the Brightness slider to lighten or darken the image.
Use the Contrast slider to increase or reduce tonal range.
Use the Saturation slider to boost or mute colors.
Click Preview to compare, then Download PNG.

Why Use This Tool?

Brightness, contrast, and saturation adjustments are the most common corrections applied to photos. Increasing brightness fixes underexposed shots, boosting contrast makes flat images punchier, and saturation control gives photos a vivid or muted look. All processing happens in your browser — no file uploads.

Brightness & Contrast

How to Brightness & Contrast

Why Use This Tool?

Frequently Asked Questions