Mermaid Diagram Use Cases

See how teams use Mermaid diagrams for real-world documentation and design.

Database Schema Diagrams

Visualize your database schema with Mermaid ER diagrams. Import SQL CREATE TABLE statements directly or write Mermaid syntax to define entities, attributes, primary keys, foreign keys, and relationships. Perfect for database design, documentation, and migration planning.

Microservices Architecture Diagrams

Document your microservices architecture with Mermaid flowcharts. Visualize service dependencies, API gateways, message queues, databases, and communication patterns. Diagrams as code means your architecture docs live alongside your code and stay up-to-date.

API Documentation Diagrams

Document your APIs visually with Mermaid. Sequence diagrams show request/response flows between clients and services. Flowcharts illustrate authentication flows and error handling. ER diagrams define your data models. All rendered directly in your GitHub or GitLab docs.

CI/CD Pipeline Diagrams

Document your CI/CD pipelines with Mermaid flowcharts. Visualize build stages, test suites, deployment environments, approval gates, and rollback procedures. Since Mermaid renders in GitHub, your pipeline docs live right next to your pipeline code.

System Design Diagrams

Visualize system designs with Mermaid for architecture reviews, technical interviews, and documentation. Use flowcharts for high-level architecture, sequence diagrams for data flows, and C4 diagrams for hierarchical decomposition. Text-based diagrams iterate faster than whiteboard drawings.