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Sankey Diagram Maker

#Developer Tools#Analytics

Build a Sankey graph, Sankey plot, and Sankey chart editor with an expandable canvas, editable flows, direct labels, and consistent totals.

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Sankey Diagram Maker template interface showing editable nodes and links with conservation checks
Tech Stack
reflexpython
Key Features
Editable nodes and links with conservation checks
Proportional Sankey canvas with keyboard selection
Scenario saving, example switching, and undo
Contextual flow inspector with percentages
Accessible link table and truthful empty states
Requirements
A clear workflow to edit and explain proportional flows with an interactive Sankey diagram
Realistic seeded local data with consistent derived state
Validation, confirmation, error, empty, and success states
A responsive, accessible product interface

About This Template

Sankey Diagram Maker is a Reflex template for building and editing a Sankey graph from your own data. A Sankey chart shows how quantities move between stages, while a proportional Sankey plot makes the largest flows easy to compare. This makes the visualization useful for energy, budget, traffic, conversion, and supply-chain analysis. The Sankey diagram generator opens with seeded scenarios, stages, nodes, links, totals, warnings, and palettes, so you can make a Sankey diagram immediately without credentials or setup. Edit nodes and links directly, and conservation checks flag any stage where inflow and outflow disagree. Keyboard selection keeps the Sankey graph accessible, while a contextual flow inspector explains the percentages behind each ribbon. An accessible link table mirrors the Sankey chart for screen readers and detailed data review. Scenarios can be saved, switched, and undone without losing the current flow data. For teams working in Python, the Reflex implementation provides an editable Sankey diagram Python developers can version and extend rather than a static image. Use the Sankey chart Python source as a starting point, then adapt its data model, interactions, labels, and responsive layout in code.

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