Flowchart Maker

What is it?

The Flowchart Maker is a free, browser-based diagramming tool for creating process flows, decision trees, system architectures, and workflow diagrams. Add rectangles (process steps), diamonds (decision points), ovals (start/end), and parallelograms (input/output). Connect any two shapes with directional arrows, add text labels to both nodes and connectors, drag everything into position, and export the finished diagram as a high-resolution PNG. All work happens locally — no account, no cloud storage, no data sent anywhere.

How to use it

1. Click a shape button (Rectangle, Diamond, Oval, Parallelogram) to add it to the canvas.
2. Double-click any shape to edit its label text.
3. Click the "Arrow" tool, then click a source shape and drag to the target shape.
4. Drag shapes freely to rearrange the layout.
5. Click a shape or arrow and press Delete to remove it.
6. Click "Export PNG" to download the diagram as an image.

Why use this tool

Flowcharts are the universal language of process documentation — used by developers mapping algorithms, managers drafting onboarding procedures, teachers explaining decision logic, and analysts documenting system flows. Professional tools like Lucidchart or Visio cost money and require sign-ups. Our maker gives you the core diagramming capability for free, right in the browser, with instant PNG export. The canvas auto-scrolls for large diagrams and your work is auto-saved to localStorage so nothing is lost on accidental tab close.

Frequently asked questions