Mermaid.js: Diagram Creation Made Easy with Markdown

Mermaid.js is a JavaScript-based diagramming and charting tool that uses Markdown-like text definitions to create and modify diagrams. It solves the problem of documentation falling behind development by allowing easy creation and modification of various charts including flowcharts, Gantt charts, and sequence diagrams. Even non-programmers can easily use the live editor to create complex visuals. Mermaid integrates with popular applications like GitHub and includes a sandboxed iframe for enhanced security.