Free Online 3D Graphing Calculator

3D Plotter & 3D Graph Maker for Students and Academics

Underleaf's free 3D graphing calculator lets you plot surfaces, parametric curves, and mathematical equations in three dimensions. Perfect for calculus, multivariable analysis, differential equations, and mathematical visualization.

Features

• Plot explicit surfaces z = f(x,y) like paraboloids, saddles, and wave functions
• Visualize parametric curves (x(t), y(t), z(t)) including helixes and knots
• Render parametric surfaces with u,v parameters: spheres, tori, Möbius strips
• Interactive 3D rotation, zoom, and pan controls
• Multiple simultaneous expressions with different colors
• Adjustable resolution, opacity, wireframe, and grid display
• Export graphs as PNG images for papers and presentations
• 20+ built-in presets for common mathematical surfaces

Supported Functions

sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, exp, log, ln, sqrt, abs, floor, ceil, round, pow, min, max, and constants pi, e, tau.

Explore 3D Graph Presets

• Paraboloid 3D Graph — Upward-opening paraboloid
• Saddle 3D Graph — Hyperbolic paraboloid (saddle shape)
• Sine Surface 3D Graph — Product of sine and cosine
• Ripple 3D Graph — Circular ripple pattern
• Gaussian 3D Graph — Gaussian bell curve in 3D
• Wave Interference 3D Graph — Two perpendicular wave interference
• Mexican Hat 3D Graph — Ricker wavelet (Mexican hat function)
• Egg Carton 3D Graph — Egg carton surface pattern
• Monkey Saddle 3D Graph — A saddle with three dips
• Cone 3D Graph — Circular cone
• Helix 3D Graph — A standard helix spiraling upward
• Toroidal Spiral 3D Graph — Spiral wrapped around a torus
• Trefoil Knot 3D Graph — A trefoil knot in 3D
• Lissajous 3D 3D Graph — 3D Lissajous figure
• Viviani's Curve 3D Graph — Intersection of a sphere and cylinder
• Sphere 3D Graph — A sphere of radius 2
• Torus 3D Graph — A donut-shaped torus
• Möbius Strip 3D Graph — A one-sided Möbius band
• Klein Bottle 3D Graph — A non-orientable Klein bottle
• Helicoid 3D Graph — A ruled surface resembling a spiral staircase
• Intersecting Planes 3D Graph — Three intersecting planes at the origin
• Shell & Plane 3D Graph — Ripple surface clipped by a horizontal plane