Voronoi DD interactive Voronoi & power diagrams — points and segments

Sample dataset

Visualization mode

Boundary mode

Bounded (clipped to box) Infinite look

X to Y to

Bounds expand automatically to fill the window shape.

Display options

Show points Show line segments Show line discretization points Show segment sub-cell edges Hover cell info Auto-group chained segments

Random generation

points segments

Mouse & keys

click	add point
drag	add segment
Ctrl + drag	move point / endpoint (live)
right-click	delete nearest element
Shift + wheel	element weight (power diagram)
wheel	zoom at cursor
middle-drag	pan
hover	cell area, weight, group, neighbors
Ctrl+Z / Esc	undo / cancel

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About & user manual ↗
Runs entirely in your browser (Python via Pyodide) — the same geometry engine as the desktop app. CSVs are interchangeable between the two.

Starting…

First visit downloads the Python/scipy runtime (~30 MB); it is cached for later visits.