Flowchart Generator
Type plain-text steps and get a clean, professional flowchart instantly. Supports process steps, decisions, loops, start/end nodes. Export as SVG or PNG — all in-browser, nothing uploaded.
or load a template to get started
How the Flowchart Generator Works
What is a Flowchart Generator?
A flowchart generator converts a simple text description into a rendered flowchart diagram. Instead of manually drawing shapes and arrows, you write a few lines describing your process flow — and the diagram renders instantly. Flowcharts document business processes, algorithm logic, decision trees, troubleshooting guides, and system workflows used in development and project planning.
This tool runs entirely in your browser using Mermaid.js — your diagram data never leaves your device.
Flowchart Node Shapes
- Rectangle [ ] — standard process step or action.
- Rounded rectangle ( ) — start or end of the flow (terminal node).
- Diamond { } — decision point with Yes/No or True/False branches.
- Parallelogram [/ /] — input or output operation.
- Circle (( )) — connector node for joining or splitting flows.
- Hexagon {{ }} — preparation or initialisation step.
How to Create a Flowchart
- Choose flow direction — Top-Down (TD), Left-Right (LR), Bottom-Up (BU), or Right-Left (RL).
- Write your nodes and connections using the Mermaid flowchart syntax shown in the cheatsheet.
- The flowchart renders live as you type.
- Download as SVG or PNG for presentations or documentation.
Frequently Asked Questions
subgraph GroupName ... end. Subgraphs render as a bordered group within the main flowchart, useful for showing system boundaries or logical phases of a process.style directive: style nodeId fill:#f96,stroke:#333. To apply a style to multiple nodes, define a class with classDef className fill:#f96 and apply it with class node1,node2 className. This lets you colour-code different types of steps.Enjoying this tool?
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