Diagrams that explain.
Learn to write, debug, and export diagrams with reusable source and practical walkthroughs.
Tag: mermaid
Guides & articles
16 articles
Document API retries and timeouts with a Mermaid sequence diagram
Build an illustrative retry diagram that distinguishes a failed response from a failed operation, shows one retry, and makes idempotency assumptions explicit.
Make a Mermaid diagram readable on a phone
Redesign a wide approval flow for a narrow article column: choose direction, shorten labels, preserve branches, split detail, and check the exported image at its real display size.
Fix Mermaid parse errors without rewriting your diagram
A practical debugging workflow for broken labels, missing end statements, Markdown fences, and version mismatches, with working examples and a reproducible bug-report checklist.
Mermaid Prompt Engineering for LLMs: A Practical Guide
Master the art of prompting ChatGPT, Claude, and Gemini to generate accurate Mermaid diagrams. Includes templates, the Mermaid-First strategy, and error recovery techniques.
Why Mermaid Diagrams Help AI and LLMs Understand Complex Systems
Learn why Mermaid is the best diagram format for AI comprehension — fewer tokens, less hallucination, and better structured reasoning for ChatGPT, Claude, and other LLMs.
Mermaid State Diagram Guide: Model System Behavior with Code
Learn Mermaid state diagram syntax from basics to advanced patterns. Perfect for modeling workflows, state machines, and UI transitions with copy-paste examples.
Mermaid Complete Beginner's Guide: Draw Professional Diagrams with Code
Learn Mermaid diagram syntax from scratch. Master flowcharts, sequence diagrams, Gantt charts, and more to boost your technical documentation and team collaboration.
Export Mermaid for documents: choose PNG, SVG, JPG, or PDF
Choose an export format by destination, understand Mermaid2Img's raster PDF output, and check dimensions, backgrounds, labels, and source preservation before sharing.
Complete Guide to Embedding Mermaid Diagrams in Markdown
A comprehensive guide on embedding and displaying Mermaid diagrams across GitHub, GitLab, Notion, VS Code, MkDocs, blog platforms, and more—with detailed setup steps and alternatives for each.
Mermaid Class Diagrams and ER Diagrams: A Beginner's Guide
Learn how to create class diagrams and entity-relationship diagrams with Mermaid. This beginner-friendly guide covers syntax, relationships, cardinality, and practical examples for software design.
Mermaid vs PlantUML: Which Diagram-as-Code Tool Should You Choose?
A detailed comparison of Mermaid and PlantUML, two leading diagram-as-code tools. Explore their syntax, supported diagrams, ecosystem, and use cases to find the best fit for your workflow.
Building Gantt Charts with Mermaid for Project Management
Learn how to create professional Gantt charts with Mermaid. Covers task definitions, dependencies, milestones, section grouping, and real-world project planning examples.
How to Create Sequence Diagrams with Mermaid: A Step-by-Step Tutorial
Learn to build professional sequence diagrams with Mermaid. Covers participants, message types, activation bars, loops, alt blocks, and a complete e-commerce checkout example.
Mermaid Flowchart Complete Guide: From Basics to Advanced Styling
Master Mermaid flowcharts with this comprehensive guide covering direction control, node shapes, link styles, subgraphs, custom styling, and real-world examples.
Mermaid CLI Guide: Convert Mermaid to PNG, SVG, and PDF
Install and use @mermaid-js/mermaid-cli (mmdc) to export Mermaid diagrams as PNG, SVG, or PDF locally, in scripts, and in CI workflows.
Mermaid2img: Turn Your Code into Beautiful Diagrams Instantly
As a content creator, I love using Mermaid to draw diagrams with code. It's fast and efficient. But I quickly hit a wall: many platforms like blogs, social media, or presentation software don't understand Mermaid code. I needed a simple way to convert my diagrams into standard image files. That's why I built Mermaid2img, a free online tool that turns your Mermaid code into high-quality images in seconds.