# LangGraph - graphing using mermaid

**URL:** <https://forum.langchain.com/t/langgraph-graphing-using-mermaid/2605>\
**Category:** LangGraph\
**Tags:** intro-to-langgraph, python-help\
**Created:** [December 27, 2025, 9:59am UTC](https://forum.langchain.com/t/langgraph-graphing-using-mermaid/2605 "2025-12-27T09:59:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Edmizer](https://avatars.discourse-cdn.com/v4/letter/e/d26b3c/32.png) [@Edmizer](https://forum.langchain.com/u/Edmizer)\
**Post date:** [December 27, 2025, 9:59am UTC](https://forum.langchain.com/t/langgraph-graphing-using-mermaid/2605/1 "2025-12-27T09:59:56Z")

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Hi,

I’ve started the LangGraph essentials academy course. I’ve noticed LangGraph has built-in capabilities for generating state graphs using mermaid.

I’m working on a personal project where I planned on adding an agent that creates diagrams using PlantUML. I’ve noticed that most of the diagrams I’m interested in, are also available with mermaid. and I wondered would it be possible to add functionality for an agent to generate diagrams using mermaid (instead of PlantUML for my use-case)?

It would be a nice feature of having an agent generating diagrams in general based on user’s query for LangGraph/LangChain. it could work as a tool (like SQL toolkit) or maybe a middleware (like TodoListMiddleware).

I also wonder what are the community’s thought is, do people using LangChain/LangGraph are interested in a feature of drawing diagrams?