Array manipulation, ordering, searching, summarizing, etc.

Human-readable reference marks for scales.

Select a one- or two-dimensional region using the mouse or touch.

D3 examples as reusable functions! Ready for import or copy-paste.

Visualizations relationships or network flow with an aesthetically-pleasing circular layout.

Color spaces! RGB, HSL, Cubehelix, Lab (CIELAB) and HCL (CIELCH).