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Flowchart Builder

Create professional flowcharts with drag-and-drop shapes on an interactive SVG canvas. Add Start/End, Process, Decision, Input/Output, and Connector shapes, connect them with arrows, edit labels inline, colour-code with the built-in picker, and export as SVG or PNG - all running locally in your browser with no signup required.

Click a shape above to add it to the canvas
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Why Use Our Flowchart Builder?

Drag-and-Drop Flowchart Canvas

Place shapes on an SVG canvas by clicking from the toolbar. Drag shapes to reposition them anywhere on the canvas. Build process flows, decision trees, and system diagrams with ease.

Connect Shapes with Arrows

Enter connect mode and click two shapes to draw a directional arrow between them. Connections automatically follow shape positions - move a shape and its arrows update in real time.

Colour-Code & Label Shapes

Assign colours to individual shapes with a built-in colour picker. Edit shape labels inline - click any shape to select it, then update its text in the properties panel.

Export as PNG or SVG

Download your flowchart as a high-quality SVG vector file or a PNG image. SVG export preserves all shapes, labels, and arrows for use in presentations, documents, or further editing.

Common Use Cases for Flowchart Builder

Process Mapping & Workflows

Map out business processes, approval workflows, or operational procedures as clear, visual flowcharts. Each step is a shape, every decision is a diamond, and arrows show the flow direction.

Team Brainstorming Sessions

Use the flowchart canvas to capture team ideas during brainstorming. Place shapes for each idea, connect related concepts, and colour-code by category or priority.

Algorithm & Logic Diagrams

Create flowcharts for algorithms, program logic, or system architectures. Use decision diamonds for conditionals, process boxes for operations, and start/end nodes for entry and exit points.

Customer Journey Mapping

Visualise the customer journey from awareness to purchase. Map touchpoints as process boxes, decision points as diamonds, and connect them with arrows showing the customer flow path.

Software Architecture Diagrams

Design system architecture flowcharts showing how components interact. Document API request flows, data processing pipelines, or authentication sequences with labelled, colour-coded shapes.

Presentation & Report Diagrams

Create polished flowchart diagrams for business presentations and reports. Export as SVG for high-resolution vector graphics that scale perfectly in slides and documents.

Understanding the Flowchart Builder

What is a Flowchart Builder?

A flowchart builder is a tool for creating visual diagrams that represent processes, workflows, algorithms, or systems using standardised shapes and connecting arrows. Common shapes include rounded rectangles for start/end points, rectangles for process steps, diamonds for decisions, parallelograms for input/output, and circles for connectors. Our flowchart builder lets you place these shapes on an interactive canvas, connect them, label them, and export the result as SVG or PNG - all in your browser.

How Our Flowchart Builder Works

Start by selecting a shape from the toolbar - Start/End, Process, Decision, Input/Output, or Connector - and click on the canvas to place it. Drag any shape to reposition it anywhere on the canvas. To connect two shapes, click the Connect button to enter connect mode, then click the first shape (source) and the second shape (target). An arrow appears connecting them. Click a shape to select it and edit its label or change its colour using the properties panel. Press Delete or click the Delete button to remove a selected shape and its connections.

Understanding Flowchart Shapes

Start/End (Terminator): Rounded rectangle marking the beginning or end of a process. Process: Rectangle representing an action or operation step. Decision: Diamond shape with branching paths (typically Yes/No). Input/Output: Parallelogram showing data input or output. Connector: Small circle linking flow lines across different parts of a diagram. Each shape can be customised with a label and colour to match your diagram's needs.

Privacy, Security & Availability

Your diagrams stay private. The flowchart builder runs entirely in your browser - your shapes, labels, connections, and diagram data are never uploaded, stored, or shared. There are no file size limits, no signup required, and the tool is completely free to use forever. Since everything runs client-side, it works even without an internet connection after the initial page load.

Frequently Asked Questions About Flowchart Builder

What is a Flowchart Builder?
A flowchart builder is a browser-based tool for creating visual diagrams that represent processes, workflows, or systems. Our flowchart builder provides common shapes (Start/End, Process, Decision, Input/Output, Connector) on an SVG canvas. Add shapes, connect them with arrows, edit labels, and export as PNG or SVG - all locally in your browser with no signup required.
How do I add shapes to the canvas?
Click a shape button from the toolbar at the top of the canvas (Start/End, Process, Decision, Input/Output, or Connector). This places the shape at the centre of the visible canvas area. You can then drag the shape to reposition it anywhere on the canvas.
How do I connect shapes with arrows?
Click the "Connect" button in the toolbar to enter connect mode. Then click the first shape (the source), followed by the second shape (the target). An arrow will be drawn connecting them with the arrowhead pointing toward the target shape. Click "Connect" again to exit connect mode.
How do I edit a shape's label or colour?
Click on any shape to select it. The shape will highlight with a blue border. A properties panel appears showing the current label text and colour. Type a new label in the text field or click a colour swatch to change the shape's fill colour. Changes apply immediately to the selected shape.
Can I delete a shape and its connections?
Yes. Select a shape by clicking on it, then press the Delete key on your keyboard or click the "Delete" button in the toolbar. The shape and all arrows connected to it will be removed from the canvas.
How do I export my flowchart?
Click the "Export SVG" button to download the flowchart as an SVG vector file, which scales perfectly for presentations and documents. Click "Export PNG" to download as a PNG image at twice the canvas resolution for crisp output on retina displays.
Is this flowchart builder free to use?
Yes, the Flowchart Builder is completely free to use with no signup required. There are no hidden fees, no premium features, and no limits on how many shapes or connections you can create. Since everything runs locally in your browser, there is no server cost.
Do you support other diagram types?
Currently, we support standard flowcharts with the most common shapes. Check our related planning tools for mind maps, Venn diagrams, prioritisation matrices, and other visual planning tools. All tools run locally in your browser with no account required.