How do I create a sankey diagram maker?

Enter your data in the input fields or upload a file. The graph will be generated automatically. Customize colors, labels, and styling using the options panel.

Can I customize the appearance of my graph?

Yes! You can change colors, fonts, labels, axes, legends, and more. Export your customized graph as PNG, SVG, or PDF.

What data formats are supported?

You can paste data directly, upload CSV/Excel/JSON files, or enter values manually. The graph maker automatically detects your data structure.

Can I embed graphs in my website or documents?

Yes, download as image (PNG/SVG) for documents or presentations. You can also get embed code for websites or export the underlying data.

Is there a limit on data points?

No practical limit for most use cases. The graph maker handles thousands of data points efficiently. Very large datasets may benefit from our premium features.

Agents for Data

Sankey Diagram Maker

Create professional Sankey diagrams to visualize flow relationships and quantity distributions. Perfect for displaying energy flows, budget allocations, and process flows.

Loading calculator...

How to Create a Sankey Diagram

Enter your flow data directly into the table or upload a CSV file with source, target, and value columns
Use path notation (e.g., Source->Process->Target) or separate columns to define the flow relationships between nodes
Add numeric values for each flow to determine the width of the connecting links in your diagram
Choose the orientation (horizontal or vertical) that best fits your data and presentation needs
Configure label display options to show node names and flow values clearly, ensuring readability
Add a descriptive chart title, customize colors and styling, then review and export your Sankey diagram

Frequently Asked Questions

Related Calculators and Graph Makers

Tree Diagram Maker

Create professional tree diagrams to visualize hierarchical relationships and organizational structures. Perfect for displaying family trees, org charts, and decision trees.

Sunburst Chart Maker

Create professional sunburst charts to visualize hierarchical data and nested relationships. Perfect for displaying multi-level categories, file systems, and organizational structures.

Bar Graph Maker

Create professional bar graphs easily with our free online tool. Perfect for comparing categories, showing rankings, or displaying survey results with horizontal bars.

Pie Chart Maker

Generate pie charts to show proportions and percentages of a whole. Perfect for displaying market share, survey results, or budget allocation.