What is Mermaid?

Mermaid is a JavaScript-based diagramming and charting tool that uses a Markdown-inspired text definition language. It allows users to create diagrams like flowcharts, sequence diagrams, Gantt charts, and more using simple text descriptions. These descriptions are then rendered into visual diagrams in web browsers or other supported environments. It is commonly used for documenting processes, system architecture, and project timelines directly within documentation or wikis, as well as in development workflows for visualizing code execution.