Image Brightness & Contrast
Adjust brightness, contrast, and saturation with live sliders. Files never leave your browser.
Drop an image or click to browse
PNG, JPG, WebP — processed entirely in your browser
Adjust image brightness and contrast online
The sliders use the same CSS filter functions applied to the canvas — so the preview is pixel-accurate with the downloaded result. Brightness at 100% is unchanged; above 100% lightens, below darkens. Saturation at 0% gives grayscale. For a pure black-and-white conversion, see Image to Grayscale.
Private & free — this tool runs entirely in your browser.
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