DiagramGPT — Eraser

How to generate a mermaid diagram

Tips on editing a Mermaid Diagram using Eraser

• Try multiple diagram types. Eraser offers multiple diagram types including architecture, sequence, flowchart, and entity relationship. Try different types to see which one your Mermaid code would best be represented as.
• Try different editing methods (requires signing in to Eraser). Eraser offers three different ways to edit a diagram. You can edit using AI prompts, directly editing the Eraser syntax, and click-dragging elements using Eraser’s visual editor.
• Try collaborative editing (requires signing in to Eraser). Once signed in, you can simply share the link to a file or diagram with a collaborator to work together on a diagram in real-time.
• After making edits, if you need Eraser code to be translated back to Mermaid code, you can use any generic LLM (e.g. ChatGPT, Claude, etc.) to convert it.

Steps to generate the diagram

1. Paste your Mermaid code into the prompt field
   Your Mermaid syntax could come from any source including any generative LLMs like ChatGPT, Claude, Copilot, Cursor, or any repositories of Mermaid-based documentation.

2. Click generate
   Your Mermaid code should be converted into an Eraser diagram in a few seconds.

3. Edit the diagram using AI prompts
   (requires signing in to Eraser). For example: “Group all data components into a ‘Data Layer’” or “Add an API Gateway in front of the backend services.”

4. Tweak the layout using GUI controls
   (requires signing in to Eraser). Adjust spacing, reroute lines, or rename components for clarity.

Generate any type of diagram with AI

• Architecture
• Swimlane
• Sequence
• Flowchart
• ERD
• Data Flow
• Network
• AWS
• Azure
• Terraform
• Kubernetes

Frequently asked questions

• Can I edit the generated mermaid 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 mermaid diagram editor 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 mermaid 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.