Free flowchart generator

What is a flowchart?

A flowchart is a diagram that shows the steps of a process in order, with boxes for actions, diamonds for decisions and arrows for the path between them. A flowchart generator draws that diagram from a plain description, so you don’t have to place and connect every shape by hand.

Flowcharts make a process easy to grasp at a glance. They show where work changes hands, where decisions split the path and where things can loop back, which is hard to see in a wall of text.

When to use a flowchart

• Onboarding: show a new hire how a request moves through the team before they read the detailed SOP.
• Process changes: agree on the new flow with everyone involved before you update tools or documents.
• Support and escalation: make clear who handles what, and when a case moves on.
• Documentation: put an overview at the top of a long guide so readers see the whole path first.

Flowchart symbols you’ll see

• Rounded box (start and end): where the process begins and where it finishes.
• Rectangle (step): one action, such as “Assign the ticket”.
• Diamond (decision): a yes-or-no question with a labeled arrow for each answer.
• Arrow: the order of the steps. Each arrow should point one way only.

Flowchart or process map?

The terms overlap. This process map generator draws standard flowcharts; here is how they differ from related diagrams:

A short flowchart example

Describe a support process in four sentences: a customer submits a ticket; billing questions go to the billing team and everything else to a tier 1 agent; unsolved tickets are escalated to tier 2 after 24 hours; solved tickets get a survey and are closed. The AI flowchart maker turns that into a start node, two decision diamonds (“Billing question?” and “Solved within 24 hours?”), the three teams as steps and a single end node, with labeled yes and no arrows.

What is Mermaid, and why does it matter?

Mermaid is a simple text format for diagrams. Each flowchart this tool makes comes with its Mermaid source, a few readable lines that say, for example, that “Submit ticket” leads to a “Billing question?” decision. You can paste that source into tools that render Mermaid, such as Notion, GitHub or mermaid.live, and edit a label or add a step by changing one line instead of redrawing the chart.

How to describe a process for a clear flowchart

Name the start and the end

Say what triggers the process and what “done” means. A flowchart without a clear end tends to sprawl.

Spell out every decision

Write decisions as questions with their answers: “If the order is over $500, a manager approves it; otherwise it ships.” That becomes a diamond with two labeled paths.

Use one verb per step

“Review the invoice”, “Send the reminder”. Short, action-first steps keep the boxes readable.

Keep it to one page

If the chart needs more than about fifteen boxes, split it into a main flow and sub-processes.

Common flowchart mistakes

• Decision diamonds with unlabeled arrows, so readers can’t tell which path is yes.
• Mixing levels of detail, with one box for a whole department next to one box for a single click.
• Loops with no exit, such as “retry” with no limit.
• Drawing the ideal process instead of the one people actually follow.

Check the generated chart with someone who does the work every day; they will spot the missing step or exception quickly.