Sankey Diagram Generator

Worked example

Put Source, Target, and Value in a table — say Budget → Design 40 and Budget → Build 60 — and you'll get two ribbons whose thickness matches those values. Edit a number and the diagram updates.

FAQ

What data shape does a Sankey need?

Each row is a flow from one node to another, with a positive value. Nodes are created from the names you type.

Can I export the diagram?

Yes. Export SVG if you want to edit it, or PNG for a slide. The export uses the colours and spacing currently on screen.

Why is a ribbon missing?

A flow needs a source, a target, and a numeric value. Empty or zero rows are left out of the layout.