Using DeepSeek to Generate Mermaid Diagrams: Flowcharts, Gantt Charts, and Sequence Diagrams

In this article, the author introduces Mermaid as a text‑based chart generation tool that supports flowcharts, Gantt charts, sequence diagrams, and more, and explains how DeepSeek can be used to quickly produce the corresponding Mermaid syntax.

The tutorial starts with a brief overview of DeepSeek’s capabilities beyond mind‑mapping, then details the preparation steps: ensuring access to DeepSeek and having a Mermaid‑compatible rendering tool such as Mermaid Live Editor, Typora, or Obsidian.

Three practical examples are provided:

Generating a project development flowchart by prompting DeepSeek with a list of stages (requirements analysis, UI design, development, testing, release) and copying the returned Mermaid code into the live editor.

Creating a Gantt chart for the same project by supplying start and end dates for each task, again using a DeepSeek prompt and visualizing the result.

Producing a sequence diagram that outlines the historical milestones of artificial intelligence, from the 1943 McCulloch‑Pitts model to modern ChatGPT and DeepSeek.

For mind‑map diagrams, the author shows a DeepSeek‑generated example and provides the exact Mermaid syntax needed to render rounded‑square nodes:

mindmap id(I am a rounded square)

The article also compares Mermaid with XMind, highlighting that Mermaid’s programmatic, text‑based approach is better suited for developers who want to generate diagrams automatically, while XMind offers a graphical drag‑and‑drop interface for non‑technical users.

Finally, the author promotes a DeepSeek scenario‑practice collection, offering a paid product that includes additional AI‑generated diagram examples, a resource library, and a community group.