Tone curves, histograms, split toning, and an exposure-triangle simulator — all interactive, all in the browser, and your photos never leave your device.



Drag points on a live curve to remap brightness and grade color channel by channel.
Select a region or tonal range and watch the brightness distribution respond.
A realistic 3D room where aperture, shutter, and ISO change depth of field, motion, and noise.
Tint shadows and highlights separately for teal-and-orange and other looks.
Start with the tone curve, or jump into the histogram, split toning, and the 3D exposure triangle — no screenshots, no installs.
Open the curve editor