Supply chain diagram
Map the flow of goods from supplier to customer. Start from a ready template, edit the steps as plain text, and render a clean supply chain diagram — exported locally, never uploaded.
One step per line. Indent two spaces to branch beneath the line above.
A clear map of who touches the product
A supply chain diagram lays out the journey of goods — suppliers, manufacturing, distribution, retail and the customer — so everyone shares one picture of the flow. Grouping each stage in a subgraph keeps it readable, and a left-to-right layout reads naturally as a chain.
Start from a template above, rename the boxes to your real partners and stages, and the layout reflows automatically. Add a dotted link for returns or a decision node for quality checks.
For slides, docs and operations reviews
Because it renders to SVG and PNG, a supply chain diagram drops cleanly into a deck, a Notion page or an operations runbook. And because the source is plain text, you can keep it under version control and update it as suppliers or routes change — no redrawing.
Frequently asked questions
How do I make a supply chain diagram?
Load a template above, then edit the boxes to your real suppliers, stages and partners. It is a left-to-right Mermaid flowchart, so each "A --> B" is a step in the chain. Export to SVG or PNG when done.
Can I group stages like upstream and downstream?
Yes — wrap each stage in "subgraph Name … end". That produces labelled boxes for upstream, distribution and downstream, which keeps a longer chain readable.
How do I show returns or reverse logistics?
Add a dotted link with a label, for example "Customer -. returns .-> Warehouse", to distinguish the reverse flow from the forward one.
Is it free, and is my data private?
Yes and yes. There is no signup or watermark, and the diagram renders in your browser — your supplier names and network stay on your device.
Can non-developers use it?
Yes. Start from a template and edit the labels, or switch on Outline mode and type the stages as a plain indented list — no syntax to learn for a simple chain.