Mermaid Template Gallery

Copy-ready Mermaid diagram templates for GitHub, GitLab and Notion.

Template

Basic decision flow with diamond conditions.

flowchart TD
    Start([Start]) --> Input[/Get input/]
    Input --> Check{Valid?}
    Check -->|Yes| Process[Process]
    Check -->|No|  Error[Show error]
    Process --> End([End])
    Error --> End

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Browse ready-to-paste Mermaid snippets for flowcharts, sequence diagrams, class diagrams, state machines, ER diagrams, Gantt, pie, mindmap and timeline. We don't render Mermaid here — paste into any Mermaid-enabled editor.