How to Create Flowcharts Online — Free Drag-and-Drop Builder
What is a Flowchart?
A flowchart is a visual diagram that represents a process, workflow, or algorithm using shapes and arrows. Rectangles represent actions, diamonds represent decisions, and arrows show the flow direction. Flowcharts are used in software development, business process mapping, education, and project management to make complex processes easy to understand.
Creating Your First Flowchart
Open the Flowchart Builder and start by adding a Start node. Drag shapes from the toolbar — rectangles for processes, diamonds for decisions, parallelograms for input/output. Connect shapes by dragging from one node's connection point to another. Double-click any shape to edit its text. The canvas is infinite, so your flowchart can be as large as needed.
Best Practices for Clear Flowcharts
Keep it simple — each shape should contain one action or decision. Use consistent sizing for shapes at the same level. Flow top-to-bottom or left-to-right (never mix directions). Label decision branches clearly (Yes/No, True/False). Use color coding to group related steps. Add a legend if your flowchart uses custom symbols.
Common Flowchart Types
**Process flowcharts** map business workflows step by step. **Swimlane diagrams** show which department handles each step. **Data flow diagrams** track how information moves through a system. **Decision trees** map out branching logic. The FreeDiagramKit supports all these patterns with its flexible shape and connector system.
Exporting and Sharing
Once your flowchart is complete, export it as a high-resolution PNG for presentations, SVG for scalable graphics, or save the project JSON to continue editing later. You can also use the embed feature to add your flowchart directly to a website or documentation page.