LazyTools

🔒 Every tool runs in your browser — the files and values you enter are never uploaded to any server. How it works

🔀 Flowchart Maker

Drag shapes, wire them with arrows, map a process or algorithm — then export a PNG, PDF or reusable JSON. Private, in your browser.

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Add shapes, drag to arrange, and use Connect to draw arrows between them (click a connector to delete it). Saved locally; export PNG/PDF/JSON.

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How the flowchart maker works

A flowchart shows a process as connected shapes: rectangles for steps, diamonds for decisions, rounded "terminators" for start and end, and parallelograms for input/output. Add the shapes you need, drag them into place, then turn on Connect and click two shapes to draw an arrow between them — the arrows re-route automatically as you move things. Click a connector to delete it. Export the diagram as a PNG or PDF, or as JSON to reload and keep editing, all saved in your browser.

Flowcharts are worth it when a process has branches — the decision diamonds are where they earn their keep, forcing you to spell out what happens on each path. For a purely linear list of steps, a checklist is quicker. Keep labels short so the shapes stay readable, and let the layout breathe; a cramped chart is harder to follow than the process it describes. Everything stays on your device.

Frequently asked questions

What do the flowchart shapes mean?

By convention: a rectangle is a process or action step, a diamond is a decision (with branching paths), a rounded "terminator" marks the start or end, and a parallelogram is input or output. Using them consistently makes a chart instantly readable to others.

How do I connect shapes?

Turn on Connect, click the source shape, then click the target — an arrow is drawn between them and follows the shapes as you drag them. Click any connector to remove it.

Can I export the flowchart?

Yes — as a PNG or PDF image to share or print, or as JSON that you can re-import to keep editing later. It's also auto-saved in your browser.

When should I use a flowchart vs a checklist?

A flowchart shines when the process branches — different paths depending on a decision. For a simple linear sequence, a checklist or SOP builder is faster and clearer.

Is my diagram private?

Yes — it's stored only in your browser and never uploaded. Export JSON to move it between devices yourself.

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