How to Generate Flowcharts with Claude

Generate flowcharts with Claude and ToolRouter. Visualize any process from a text description.

Tool
Diagram Generator icon
Diagram Generator

Claude builds flowcharts through progressive refinement. Describe the happy path first, then add error handling, edge cases, and parallel branches through follow-up questions. The iterative approach produces production-ready flowcharts that capture the complexity real processes have, not just the idealized version.

Connect ToolRouter to Claude

1Go to Settings → Connectors → Add custom connector
2Enter the details below and click Add
Name
ToolRouter
URL
https://api.toolrouter.com/mcp
3Done — works on Claude chat, desktop, and mobile

Steps

Once connected (see setup above), use the Diagram Generator tool:

  1. Ask Claude: "Create a flowchart using diagram-generator" and describe the process
  2. Claude generates the flowchart with proper decision diamonds and flow arrows
  3. Download the flowchart for your documentation

Example Prompt

Try this with Claude using the Diagram Generator tool
Create a flowchart for our user signup process: user enters email, we check if it exists, if yes show login prompt, if no send verification email, user clicks link, create account, redirect to onboarding.

Tips

  • Describe decision points explicitly with their yes/no branches
  • Ask Claude to add error handling paths to make the flowchart production-ready