Sankey Diagram - Professional drawing tool to create Sankey Diagrams.
SankeyMATIC - There are no tools to install. There is no code to write. You do not have to sign up for anything. Just enter your data, customize the diagram to your liking, and download a finished product.
SankeyDiagram.net - SankeyDiagram.net is an easy-to-use tool for generating and designing Sankey Diagrams which visualize flows and especially budgets. The entered data stays in your browser and gets processed locally so you don't have to worry about privacy.
e!Sankey - Die professionelle & vielseitige Software zum Zeichnen von Sankey-Diagrammen ➠ Visualisierung Ihrer Energie- & Materialflüsse ➠ Mit Verknüpfung zu MS Excel.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Visio - Simplify and communicate complex information using data-linked diagrams.