All Tools

Pick and explore colors with a visual picker. Get values in HEX, RGB, HSL, HSV, and CMYK instantly, with an eyedropper, history, and favorites.

Build harmonious color palettes from color theory rules, or extract dominant colors from any image. Copy as CSS, SCSS, Tailwind, JSON, or PNG.

Do long division with full step-by-step work shown. Enter a dividend and divisor to see the quotient, remainder, decimal, and mixed number in the traditional layout.

Compute definite and indefinite integrals with step-by-step solutions. Supports polynomials, trigonometric, exponential, and logarithmic functions, plus integration by parts.

Count significant figures in any number, round to a chosen precision, and run arithmetic that applies the correct sig fig rules automatically.

Find the slope, midpoint, and distance between two points on a coordinate plane, with line equations, an interactive graph, and step-by-step solutions.

Calculate sine, cosine, tangent and their inverse functions instantly. Switch between degrees and radians with exact values for special angles.

Calculate combinations (nCr) and permutations (nPr) instantly with step-by-step solutions for probability and counting problems.

Generate arithmetic, geometric, Fibonacci, and custom number sequences. See the nth term, the sum, and number patterns instantly in your browser.

Simplify ratios, solve a proportion for a missing value, convert a ratio to a fraction or percentage, and split an amount by ratio. Results update as you type.

Find the derivative of any function with detailed step-by-step solutions, supporting the power, product, quotient and chain rules plus higher-order derivatives.

Solve linear, quadratic, and systems of equations with detailed step-by-step solutions instantly.