Explore the Mandelbrot set

Tap — zoom in (Shift- or right-tap zooms out)
Drag — pan around
Pinch — zoom (touch)
Scroll / + − — zoom · Arrow keys — pan (desktop)
☰ Menu — palettes, coordinates, deep-zoom presets

tap anywhere to begin

Mandelbrot · deep zoom

Iterations

Auto iterations (scale with depth) GPU acceleration (WebGL shaders) Glitch overlay (debug · tints suspect pixels) Supersampling (anti-alias) Interior (inside the set) Resolution (render pixels) Force high quality (full AA at extreme depth · slower) Low power (battery saver · lower res / iterations / AA) Series approximation (CPU · skips early iterations · faster deep zoom) Palette

Color cycle Color shift

Coordinates (high precision) Re Im Radius

About / debug

Perturbation theory + Zhuoran rebasing. Rendered on the GPU via WebGL shaders (naive float32 when shallow; double-single "df64" perturbation, reference orbit as a texture, when deep), validated against the CPU/BigInt oracle. The CPU worker engines remain the fallback for the deepest zooms (>2^112) and the ground truth (validated to 2^400).