Last updated: March 2026
What Is a Flowchart Maker?
A flowchart maker is a tool that lets you visually map out processes, decisions, and workflows using standardized shapes and connecting arrows. Flowcharts use rectangles for process steps, diamonds for decisions, ovals for start/end points, and parallelograms for input/output — a visual language understood across industries worldwide.
Flowcharts were first introduced in the 1920s by industrial engineers Frank and Lillian Gilbreth and became a standard tool in computer science during the 1960s. Today, they remain one of the most effective ways to document processes, communicate workflows, and solve problems visually. Over 80% of Fortune 500 companies use flowcharts in their process documentation.
This flowchart maker runs entirely in your browser with zero setup. Drag shapes from the sidebar, connect them with arrows, customize colors and text, and export your finished diagram as PNG, SVG, or JSON. No account required, no data leaves your device.
How to Create a Flowchart
Drag shapes from the sidebar. The shape library includes six types: rectangles for processes, diamonds for decisions, ovals for start and end points, parallelograms for data input/output, circles for on-page references, and text boxes for annotations. Drag any shape onto the canvas to place it.
Connect shapes with arrows. Hover over any shape to reveal its four connection ports. Click a port and drag to another shape's port to create an arrow connector. Choose between straight, right-angle, and curved connector styles from the toolbar dropdown.
Edit text and style. Double-click any shape to type text inside it. Use the properties panel on the right to change fill color, border color, text size, and dimensions. Shapes snap to a 20-pixel grid for clean alignment, which you can toggle off for freeform placement.
Export or save your work. Download as a high-resolution PNG for presentations, SVG for scalable vector output, or JSON to save and reload your diagram later. Use the Import button to load any previously saved JSON file.
Key Features
Six shape types with standard flowchart semantics. Each shape communicates a specific meaning: rectangles for actions, diamonds for yes/no decisions, ovals for terminals, parallelograms for I/O operations, circles for connectors, and dashed text boxes for notes and labels.
Three connector styles. Straight connectors for simple flows, right-angle (orthogonal) connectors for structured diagrams that follow grid lines, and smooth curved (bezier) connectors for organic-looking diagrams. All connectors include directional arrowheads.
Undo/redo and keyboard shortcuts. Every action is tracked with a 50-step history. Use Ctrl+Z to undo and Ctrl+Shift+Z to redo. Delete selected shapes with the Delete or Backspace key. Shift-click to select multiple elements.
Built-in templates. Start from a blank canvas or choose from three templates — Basic Flowchart, Decision Tree, and Org Chart — to jumpstart your diagram. Templates provide a pre-built structure you can customize with your own content.
Frequently Asked Questions
Is this flowchart maker really free?
Yes, 100% free with no signup, watermarks, or usage limits. The tool runs entirely in your browser — nothing is uploaded to any server. Create as many flowcharts as you need and export them in PNG, SVG, or JSON format at no cost.
How do I connect shapes together?
Hover over a shape to reveal four connection ports (small circles on each side). Click and drag from one port to a port on another shape to create an arrow connector. You can choose between straight, right-angle (orthogonal), and curved connector styles from the toolbar.
Can I save and reload my diagrams?
Yes. Click the JSON export button to save your entire flowchart as a JSON file. To reload it later, click Import and select the JSON file. All shapes, connectors, text, colors, and positions are preserved exactly as you left them.
What export formats are available?
Three formats: PNG for high-resolution raster images perfect for presentations and documents, SVG for scalable vector graphics that stay crisp at any size, and JSON for saving and reloading your diagrams. The PNG export renders at 2x resolution for crisp output on retina displays.
Does the flowchart maker work on mobile?
The flowchart maker works on tablets and larger screens. For the best experience with drag-and-drop shape creation and precise connector placement, we recommend using a desktop or laptop computer. The canvas supports touch input for basic interactions on tablets.