Simple flowchart maker

Build a process flow diagram, decision tree, checklist flow, project plan, or simple org chart from a guided form. SimpleTaskKit writes the Mermaid source behind the scenes and previews it locally in your browser.

Flowchart maker controls

Show a simple start-to-finish process flow diagram.

Enter one step per line. The tool connects them in order.

Preview appears after Mermaid renders valid source.

Sample process flow loaded.

About this free online flowchart maker

This no signup flowchart tool is designed for non-developers who need a quick workflow diagram tool without opening a heavy design app. Choose a template, enter plain-language steps, and copy or download the Mermaid diagram when the preview looks right.

What it does

The simple flowchart maker turns a title and short list of steps into Mermaid flowchart code, then renders a live SVG preview. Templates cover process flows, yes/no decision trees, checklists, project steps, and lightweight org charts.

Common use cases

Use it for customer journeys, approval paths, support triage, launch checklists, event plans, team responsibilities, and quick process flow diagrams for docs, slides, tickets, or SOPs.

Privacy and local processing

This browser-local flowchart maker renders diagrams on your device. Your workflow text and Mermaid source are not uploaded to SimpleTaskKit or stored on a server.

Inputs and outputs

Inputs are a template, diagram title, and one step per line. Outputs include Mermaid source, a live preview, copyable code, a Mermaid text download, and SVG export for documents or design tools.

Limits and edge cases

The guided builder is intentionally simple. Very complex charts can become hard to read, and advanced Mermaid syntax errors will show a warning instead of silently exporting a broken diagram.

When to use advanced Mermaid

Use the advanced Mermaid tab when you already know Mermaid syntax, want to paste an existing diagram, or need a diagram type beyond the guided flowchart templates.

Need a developer workbench?

Use PayloadHarbor for diagrams-as-code.

SimpleTaskKit keeps flowcharts approachable. If you need a fuller Mermaid live editor for sequence diagrams, ER diagrams, and technical diagrams-as-code, use PayloadHarbor’s developer-focused Mermaid editor once live.

PayloadHarbor Mermaid Diagram Editor