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Sankey Diagram Builder

Enter flow data on the left; the diagram updates on the right.

Input Data Template

Use the template rows below or add your own. Values should be positive numbers.
Drop a CSV file here to import, or click Import CSV.

Layout

Export Settings

Source Target Value Action

Layout Overrides

Optional: set the column (left→right, starting at 0) and order (top→bottom) for any node.
Node Column Order
Link thickness scales with value