AI flowchart generator
Explain the process the way you’d explain it to a colleague. The AI turns it into a flowchart with the steps, decisions and loops in the right shapes, and you polish it in the editor.
Your flowchart
Mermaid code for this chart
flowchart TD
n1(["Start"])
n2["Describe your process above"]
n3["Click Generate flowchart"]
n4["Edit anything here"]
n5["Download it"]
n6(["End"])
n1 --> n2
n2 --> n3
n3 --> n4
n4 --> n5
n5 --> n6When AI helps, and when typing is faster
The generator is best when the process lives in your head or in a paragraph of documentation: a policy, an email thread, meeting notes. It pulls out the order of steps and, most usefully, spots the decisions hidden in words like “if”, “unless” and “otherwise”.
When you already know the steps, the plain flowchart maker is quicker: one line per step, no waiting. For source code, use code to flowchart, which is tuned to read loops and conditions.
How to check an AI-made flowchart in 30 seconds
- Every diamond has a labelled arrow for each answer.
- Every path reaches an End (or loops back on purpose).
- Each box holds one action that starts with a verb.
- No step from your description is missing. Read your text once more against the chart.
Questions people ask
How does the AI flowchart generator work?
You describe the process in normal sentences. An AI language model (OpenAI’s GPT-6 Luna, reached through Vercel AI Gateway) rewrites it as Mermaid flowchart code with a start, steps, decisions and an end. FlowBuilder then draws that code in your browser, and you can edit every word.
Is it free?
Yes, within a fair-use limit of a few generations every ten minutes per visitor, so the service stays free for everyone. The manual flowchart maker has no limit at all.
What should I write to get a good flowchart?
Say who starts the process, what happens in order, and every place where something can go two ways (“if the payment fails…”). Mention what happens after each outcome. Two or three short paragraphs beat one long sentence.
Does the AI get it right every time?
Not always. It can merge two steps or miss a branch you only implied. That’s why the result lands in an editor: read it once, fix any box, and the chart redraws instantly.
Is my description stored?
FlowBuilder doesn’t store it. The text is sent to the model only to produce the chart, then discarded. Don’t paste passwords or personal data about other people.