Click the image to zoom in · drag the sliders to change detail
Zoom into the Mandelbrot and Julia sets, or draw the Sierpinski triangle, Koch snowflake and fractal trees — then download your fractal as a PNG.
Click the image to zoom in · drag the sliders to change detail
Pick a fractal, then explore.
The Mandelbrot and Julia sets are escape-time fractals of the complex plane. The Sierpinski triangle, Koch snowflake and fractal tree are built by repeating a simple rule.
Click the Mandelbrot or Julia image to zoom into the boundary — the detail never runs out. Raise the iteration count to sharpen deep zooms, or change depth and branch angle for the geometric fractals.
Switch palette for a different look, then Download PNG to save your fractal. Everything runs in your browser — nothing is uploaded.
A fractal is a shape that stays detailed at every scale: zoom in and you keep finding structure that echoes the whole. The Mandelbrot set records, for each point c in the complex plane, whether the iteration z → z² + c stays bounded. A Julia set fixes c and asks the same of each starting point. The Sierpinski triangle, Koch snowflake and fractal tree instead apply one geometric rule over and over, so the same motif appears at finer and finer scales.