Drag shapes, connect nodes, export Mermaid code
About this tool
A visual flowchart editor that speaks Mermaid, so the diagram you draw drops straight into any Markdown file.
Rectangle, rounded, diamond, parallelogram, circle, database and subroutine — each maps to real Mermaid flowchart syntax.
Drag handles on every node, Ctrl+G to group, Ctrl+Z and Ctrl+Y for history, Ctrl+D to duplicate.
Twenty fill colours and ten border colours, written out as Mermaid style directives rather than lost on export.
The Mermaid source updates as you draw. Copy it as a fenced code block, or download the diagram as an image.