Mermaid

What is Mermaid?

Mermaid (mermaid.ai) is a diagramming and visual collaboration platform that evolved from the widely adopted open-source Mermaid.js project, which has accumulated over 86,700 GitHub stars. It lets users generate diagrams by describing them in natural language or Mermaid's Markdown-style syntax, with an AI layer that handles layout automatically — no drag-and-drop required. The platform supports a broad range of diagram types including flowcharts, sequence diagrams, ER diagrams, Gantt charts, C4 architecture diagrams, and more. Trusted by over 3 million users and 200,000 companies, it integrates natively with VS Code, GitHub Copilot, Confluence, JetBrains, and Microsoft Office tools, fitting directly into existing developer and business workflows.

Key Features

• Text-to-Diagram Generation

  Describe any system or process in plain language or Mermaid syntax and the platform renders a structured, formatted diagram instantly — no manual layout work needed.

• Wide Diagram Type Support

  Covers flowcharts, sequence diagrams, ER diagrams, Gantt charts, C4 architecture diagrams, state diagrams, user journey maps, and more, all from the same workspace.

• Multi-Mode Editing

  Users can write in code, refine with AI prompts, or click to edit visually — all three modes stay in sync so the diagram always reflects the latest logic.

• Deep Tool Integrations

  Native plugins for VS Code, GitHub Copilot Chat, Confluence, JetBrains, and Microsoft Office let teams diagram without switching between applications.

• Real-Time Collaboration

  Co-edit diagrams live, leave comments, and share with external stakeholders — with access controls, custom encryption, SOC2 compliance, and SSO for enterprise teams.

• Git-Native Version Control

  Because diagrams are text-based, they slot naturally into Git workflows — commit, diff, and roll back diagrams just like source code.

Use Cases

• Software Architecture Documentation : Developers and system architects can map services, dependencies, and infrastructure (AWS, Azure, GCP) quickly, then embed diagrams directly in READMEs or code reviews.
• Database Schema Design : Data engineers and analysts can model ER diagrams before writing SQL, making table relationships and constraints visible to the whole team early in the process.
• Project & Process Planning : Project managers and business analysts can build Gantt charts, timelines, and workflow diagrams to track progress and surface bottlenecks without specialized design tools.
• Technical Documentation : Technical writers and DevOps engineers can create and maintain living documentation — sequence diagrams, CI/CD pipelines, and system flows — that stays up to date alongside the codebase.
• Stakeholder Communication : Consultants, founders, and strategists can turn abstract ideas into clear visual narratives for presentations and proposals, directly from their existing workspace.

FAQs