Image Contrast Adjuster
Increase or decrease image contrast with a live slider.
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About this tool
Image Contrast Adjuster controls the difference between the light and dark areas of your photo. Raising contrast makes flat, hazy images punchier; lowering it softens harsh lighting and can give portraits a gentle, matte look.
Like the brightness tool, changes preview live and apply at full resolution. Contrast pairs well with a small brightness tweak — try both for the best result. All processing stays on your device.
How to use
- Upload an image.
- Drag the contrast slider and watch the live preview.
- Fine-tune until the image has the punch you want.
- Download the adjusted image.
Frequently asked questions
It spreads bright pixels brighter and dark pixels darker (or squeezes them together at low settings). Mid-tones shift the least.
Extreme contrast clips detail in highlights and shadows — pure white and pure black hold no texture. Moderate values are safest.
No. Everything happens locally in your browser.