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Mermaid to FlowchartBuild and edit Mermaid flowcharts visually, then export clean code and high-res diagrams.

100%

Drag nodes|Shift marquee select|Scroll to pan|Ctrl/Cmd + scroll to zoom

Start

Collect input

Validate request

Process request

Notify user

End

Mermaid Code

Two-way sync with validation, formatting, and native-feeling scroll.

flowchart TB
%% @meta title=Basic%20Flowchart theme=modufile
%% @node A type=startEnd x=420 y=80 width=170 height=84
%% @node B type=inputOutput x=420 y=220 width=192 height=84
%% @node C type=decision x=420 y=380 width=168 height=120
%% @node D type=process x=240 y=560 width=184 height=84
%% @node E type=process x=600 y=560 width=184 height=84
%% @node F type=startEnd x=420 y=740 width=170 height=84

    A([Start]) -->B[/Collect input/]
    B[/Collect input/] -->C{Validate request}
    C{Validate request} -->|Valid| D[Process request]
    C{Validate request} -.->|Needs changes| E[Notify user]
    D[Process request] -->F([End])
    E[Notify user] -->F([End])

    style A fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style B fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style C fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style D fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style E fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style F fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    linkStyle 0 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 1 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 2 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 3 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 4 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 5 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE

flowchart TB
%% @meta title=Basic%20Flowchart theme=modufile
%% @node A type=startEnd x=420 y=80 width=170 height=84
%% @node B type=inputOutput x=420 y=220 width=192 height=84
%% @node C type=decision x=420 y=380 width=168 height=120
%% @node D type=process x=240 y=560 width=184 height=84
%% @node E type=process x=600 y=560 width=184 height=84
%% @node F type=startEnd x=420 y=740 width=170 height=84

A([Start]) -->B[/Collect input/]
    B[/Collect input/] -->C{Validate request}
    C{Validate request} -->|Valid| D[Process request]
    C{Validate request} -.->|Needs changes| E[Notify user]
    D[Process request] -->F([End])
    E[Notify user] -->F([End])

style A fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style B fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style C fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style D fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style E fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    style F fill:#18181B,stroke:#3A76F0,color:#F4F4F5,font-family:Inter, sans-serif,font-size:15px
    linkStyle 0 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 1 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 2 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 3 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 4 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE
    linkStyle 5 stroke:#60A5FA,stroke-width:2px,color:#BFDBFE

About Mermaid to Flowchart

Modufile's Mermaid to Flowchart editor is a fully client-side diagram builder for Mermaid flowcharts. You can drag nodes onto a visual canvas, connect them, style them, and edit Mermaid code side-by-side with a live Mermaid.js render. The visual editor and Mermaid source stay in sync, local autosave keeps your work in the browser, and exports are generated client-side as Mermaid files, SVG, PNG, or PDF. This makes it a privacy-first way to design system diagrams, decision trees, onboarding flows, and process maps without sending your diagrams to a server.

Tech Stack

mermaidValidates Mermaid syntax and renders export-ready SVG diagrams in the browser

zustandPersists diagram state, undo/redo history, viewport, and autosave locally

pdf-libConverts high-resolution diagram exports into downloadable PDF files

Mermaid Code

About Mermaid to Flowchart

Tech Stack

Frequently Asked Questions