Drop or click to load an image
Each slider is a real per-channel transform, not a CSS filter
Pick a shape or drag the points, then copy the exact clip-path polygon CSS.
Layer up to three shadows with x, y, blur, spread, opacity and inset, then copy the CSS.
Drag the two control points on a curve, watch the easing play and copy the cubic-bezier CSS.
Convert HEX, RGB, HSL and HSV with WCAG contrast ratios and a full tint scale.
Search and copy emoji by name, with skin-tone and category filters.
Simpson's rule, trapezoid and midpoint on any function, with the error estimate.
Runge-Kutta 4 and Euler on a differential equation, with a step-size comparison.
Daily calories from age, weight, activity and goal, using the Mifflin-St Jeor equation.
