AI Sankey Diagram Generator
Most sankey tools make you edit raw text and rebuild the layout on every change. MakeCharts puts an AI assistant in the loop instead: describe the diagram you want or paste your data, then refine every node and ribbon just by chatting.
Start free in seconds
Open the editor, drop in your data and export your first chart in minutes. Start on the free plan and upgrade when you want watermark-free exports.
Open the editorHow it works, step by step
Describe or import
Tell the AI the flows in plain English, or paste a CSV of source, target and amount rows. The diagram appears in seconds either way.
Refine by chatting
Ask for a cost branch in red, small flows merged into Other, labels moved outside the nodes or a corporate palette. Each request lands instantly.
Export and keep going
Download a watermark-free (paid plans) SVG or PNG, and save the diagram so your next version is a quick chat away instead of a rebuild.
Frequently asked questions
How does the AI generate a sankey diagram?
You describe the flows or paste your data, and the assistant builds the nodes, ribbons and layout for you. You then refine anything by chatting, and every edit is visible and undoable.
Can the AI build a diagram from a description alone?
Yes. Describe the flows in plain English, such as revenue splitting into three cost buckets and profit, and the AI drafts the diagram for you to refine.
Can I still edit things manually?
Yes. You stay in control: click any node or flow to adjust it by hand, and mix manual tweaks with AI requests however you like.
Is the AI sankey generator free?
Yes. On the free plan, the AI chat, CSV import and watermark-free (paid plans) SVG and PNG exports are all free.
Your data is ready. Your chart is three steps away.
Open the editor