How do I make a Sankey diagram for free?

Use the free Sankey Diagram Creator at https://tool.adjiebrotots.com/sankeycreator/. Enter flows manually or paste CSV data and it draws a polished Sankey diagram you can export as SVG or PNG — no account, no watermark, all in your browser.

What can I use a Sankey diagram for?

Sankey diagrams visualise where quantities flow and split — budgets and cashflow, energy or material balances, supply chains, and conversion funnels. The Sankey Diagram Creator builds all of these and keeps your data local in the browser.

Sankey Diagram Creator

From	To	Amount (current)

📂

Drop a CSV file here or
browse to upload

Value Display ?

Nominal % of Max None

Node Alignment

Justify Left Right Center

Node Padding20

Node Width18px

Link Opacity42%

Diagram Height520px

Color Scheme

Label Position

Link Colour Style

Label Background Box ?

Iterations (layout quality)

Nodes

—

Links

—

Total Inflow

—

Layers

—

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Add flows to see your Sankey diagram

Use the Table on the left, paste data in the Text tab,
or upload a CSV file