Text to flowchart: turn a written process into a diagram

Worked example: from a paragraph to a flowchart

Here is a refund policy written the way procedures usually are, as one paragraph:

When a customer asks for a refund, support checks the order. If the order is older than 30 days, support explains the policy and offers store credit. Otherwise support checks whether the item was returned; if not, email a return label and wait for the parcel. The warehouse inspects the item. Damaged items go to a manager; everything else is refunded to the original payment method and the customer gets a confirmation email.

Converted to a flowchart, the same text becomes thirteen shapes: one start, six steps, three decisions and three ends.

This page draws the example with its own renderer. Generating it in flow-chart.io gives you an editable version; its layout and wording can differ, so review the draft.

Look at the "Damaged?" branch. The paragraph says damaged items go to a manager but never says what happens next, so the diagram has to stop there. Finding gaps like this is the most useful thing about turning text into a flowchart: a paragraph can skip a step without anyone noticing, a diagram can't.

How sentences become flowchart symbols

The flowchart symbols guide covers every shape in more detail.

How to convert text to a flowchart in flow-chart.io

1. Paste or type the description. Use the box below or the box on the homepage. The free preview needs no sign-up and drafts up to 8 main steps; the full editor handles longer processes and every branch.
2. Check the decisions. Every diamond should have two labeled exits, and every path should reach an end. Missing branches usually mean the text skipped something.
3. Refine in words or by hand. Click any shape to rename or move it, or describe the change, for example "add manager approval for refunds over $200".
4. Save, share or export. A free account saves one diagram and shares it as a read-only link. Pro adds downloads, including Mermaid source if your docs render Mermaid.

Write text that converts cleanly

• One action per sentence. "Support checks the order and refunds it" hides a decision.
• Name who does each step. Role names become owners or swimlanes.
• Write decisions as yes/no questions and say where both answers go.
• Say when work loops back ("ask again", "until it passes").
• Stay at one level of detail. Move a detailed sub-process into its own diagram.

Plain language or diagram code?

Code-based tools such as Mermaid and PlantUML also turn text into diagrams, but the text is a syntax (A --> B) rather than a description. That works well when the diagram lives next to code in a repository and developers maintain it. Plain-language conversion suits policies, SOPs and anyone who does not want to learn a syntax.

You do not have to choose one forever: flow-chart.io Pro exports Mermaid, and the Mermaid source for this page's example is below.

flowchart TD
  s(["Customer asks for a refund"])
  chk["Support checks the order"]
  d1{"Older than 30 days?"}
  credit(["Explain policy, offer store credit"])
  d2{"Item returned?"}
  lbl["Email a return label"]
  wait["Wait for the parcel"]
  insp["Warehouse inspects the item"]
  d3{"Damaged?"}
  mgr(["Manager reviews (outcome not stated)"])
  ref["Refund the original payment method"]
  conf[/"Send confirmation email"/]
  e(["Refund complete"])
  s --> chk
  chk --> d1
  d1 -->|Yes| credit
  d1 -->|No| d2
  d2 -->|No| lbl
  lbl --> wait
  wait --> insp
  d2 -->|Yes| insp
  insp --> d3
  d3 -->|Yes| mgr
  d3 -->|No| ref
  ref --> conf
  conf --> e

Frequently asked questions

Can AI turn text into a flowchart?

Yes. A text-to-flowchart tool reads the description, picks out triggers, steps, decisions and loops, and lays them out as connected shapes. The result is a draft: check that every decision has both outcomes and that nothing in the text was skipped.

Is text to flowchart free?

You can generate a preview free without signing up. A free account gives 4 AI credits a month (one standard diagram), saves 1 diagram and shares it as a read-only link. Downloads and unlimited diagrams are part of Pro at $9/month; see the pricing page for details.

Can I convert a whole document or SOP?

Paste the part of the document that describes one process. Long documents usually describe several processes, and one diagram per process is easier to read and review.

Can it make a swimlane diagram from text?

Yes. Name who does each step in the text and ask for lanes by role. See the swimlane diagram maker guide for examples.

Can I get Mermaid code from my text?

Pro exports any diagram as Mermaid (.mmd), as well as SVG, PNG, PDF, PowerPoint and JSON.

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Last reviewed 9 November 2026.