AI diagram generator

Sequence Diagram Generator

Generate sequence 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 sequence diagram

Tips on generating a sequence diagram
  • If available, instead of writing a prompt from scratch, consider pasting excerpts from existing code (e.g. scripts), call transcripts, or requirements documents.
  • Working with an LLM to create a thoughtful diagram prompt could also save time. Ask it to describe a user flow or data flow as a numbered list.
Example diagrams
  1. 1

    Write a prompt describing a user flow or a data flow as a sequence of events

    Structuring the prompt as a numbered list maps well to a sequence diagram. The best prompts are usually at least 3-4 sentences long.

  2. 2

    Generate a diagram with the completed prompt

  3. 3

    Edit the diagram with follow-up prompts (this step requires signing in to Eraser)

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FAQ

Frequently asked questions

  • Can I edit the generated sequence 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 sequence 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 sequence 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.