AI diagram generator

BPMN Diagram Generator

Generate bpmn diagrams in seconds. Describe what you need in plain English – or paste in code – and Eraser draws it.

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How it works

How to generate a bpmn diagram

Tips on generating a BPMN Diagram
  • Reuse existing documents: Pull process descriptions from existing docs or meeting notes instead of writing from scratch.
  • Use an LLM to structure prompts: Leverage AI assistants (like ChatGPT) to outline process steps, participants, and decisions clearly, saving time.
  1. 1

    Write a clear prompt describing your business process

    Good prompts are typically 3–4 sentences and should cover:

    • Major steps: Outline each task sequentially, indicating start and end points (events).
    • Participants: Specify roles or departments for tasks, which become swimlanes (e.g., “HR reviews application, Manager approves”).
    • Decision points: Describe key decisions (gateways) and outcomes (e.g., approved/rejected paths).
  2. 2

    Generate a diagram using your prompt

    Input your prompt into an AI diagramming tool (e.g., Eraser). The result will show tasks connected sequentially, decision gateways, and swimlanes.

  3. 3

    Edit the diagram with follow-up prompts

    (requires signing in to Eraser). Use iterative prompts to make corrections, add steps, or clarify tasks.

  4. 4

    Manually adjust layout

    (requires signing in to Eraser). Drag and reposition diagram elements for clarity and polish.

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FAQ

Frequently asked questions

  • Can I edit the generated bpmn diagram?

    Yes. Click “Save and Edit Diagram” to open it in Eraser, where you can edit using diagram-as-code syntax or the visual GUI.

  • What can I use as a prompt?

    Plain English, a nested list, or a code snippet. You can also paste excerpts from requirements docs, transcripts, or knowledge-base articles.

  • Can I use this from an AI agent?

    Yes. Eraser runs an MCP server, so any MCP-compatible client – Claude, Cursor, or ChatGPT – can create and edit these diagrams directly. See the MCP catalog for what it exposes.

  • Who created this tool?

    The bpmn diagram generator was created by the team at Eraser, leveraging frontier AI models. Eraser is an AI tool for technical design and documentation.

  • Is it free?

    Generating a bpmn diagram is free and requires no sign-up. Sign in to a free Eraser account to edit, save, and export your diagrams.

  • Is there an API?

    Yes, you can read our API documentation. The API is only available to Starter, Business, and Enterprise Plan teams.

  • Is there an MCP server?

    Yes. The Eraser MCP server lets an agent create, search, read, update and export diagrams from clients like Claude, Cursor, VS Code and ChatGPT. It is free to use, subject to the AI credit limits of your plan.

  • Do you use my data to train AI models?

    No. Neither Eraser nor our model providers use your data to train AI models. Eraser may analyze usage to improve and enhance our AI features.

  • How do I get started?

    Describe what you need in the prompt box above and generate. You can keep refining the result with follow-up prompts.

  • What’s next for this tool?

    It only gets better from here. We’re working to improve accuracy and layout customization. If there’s something you’d like to see, drop us a note at hello@eraser.io.

  • How do I get in touch?

    We’d love to hear from you. Reach out at hello@eraser.io, on X (@eraserlabs), or join our Slack community.