Curves Adjustment
Photoshop-style curves editor for precise tonal control. Adjust brightness, contrast, and color balance with interactive control points on RGB channels.
or drop image here or paste
Photoshop-style curves editor for precise tonal control. Adjust brightness, contrast, and color balance with interactive control points on RGB channels.
or drop image here or paste
Curves Adjustment is the most powerful tonal editing tool used by professional photographers and designers. It maps input brightness values to output values using a customizable curve, giving you precise control over shadows, midtones, and highlights. Unlike simple brightness or contrast sliders, curves let you target specific tonal ranges independently for surgical image correction.
Upload your image and click anywhere on the curve graph to add control points. Drag points up to brighten those tones, or down to darken them. The horizontal axis represents input values (original brightness) and the vertical axis represents output values (adjusted brightness). Add multiple points to create complex tonal adjustments. Double-click a point to remove it. Switch between RGB, Red, Green, and Blue channels for color-specific adjustments.
The RGB curve adjusts overall luminosity - pulling the midpoint up brightens the entire image while pulling down darkens it. Individual Red, Green, and Blue channels let you color grade: boost the blue channel shadows for cool tones, lift the red highlights for warm skin tones, or create cross-processed looks by adjusting opposing channels. This gives you the same creative control as Photoshop curves.
Use curves to recover detail in underexposed shadows without blowing out highlights, create cinematic color grading for video thumbnails, correct color casts from mixed lighting, add contrast to flat RAW images, or create artistic effects like matte film looks. Curves are essential for product photography, portrait retouching, landscape editing, and any work requiring precise tonal control.
The curves editor uses smooth cubic spline interpolation for natural-looking tonal transitions without banding or artifacts. All processing happens at the original image resolution for maximum quality. Export as lossless PNG for further editing, high-quality JPG for web use, or modern WebP for optimal file size with excellent visual fidelity.