Free Online Whiteboard for Flowcharts — Draw Process Diagrams Now
Create flowcharts instantly on a free open canvas. Draw rectangles for processes, diamonds for decisions, connect with arrows — no Lucidchart, no Visio, no account. Open and diagram in seconds.
When to Use a Whiteboard for Flowcharts
For quick diagrams — no subscription, no library setup, no account.
Lucidchart, Visio, and draw.io are powerful for complex, multi-stakeholder diagram projects that need auto-layout, shape libraries, and version control. But most flowchart needs are simpler: explain a process in a meeting, diagram a decision tree for a spec, sketch a user flow for a feature. For those scenarios, a full-featured diagram tool introduces more friction than value.
OnlineWhiteboard.org is the faster option for quick diagrams. Open the URL, draw a rectangle, connect it with an arrow, add a decision diamond, label everything with the text tool. Your flowchart is done in minutes with no account and no shape library to navigate. Export as PDF when done.
Flowchart Shape Guide — Which Tool to Use
Map each flowchart element to the exact whiteboard tool.
Process Step — Rectangle
Select the rectangle shape. Draw process boxes for each action in your flow. Label with the text tool. Keep labels short — use annotation for detail.
Decision Point — Diamond
Draw a diamond (rotated square) using the shape tool. Place Yes and No branches as arrows leaving the bottom and one side. Label both paths clearly.
Start/End — Oval or Rounded Rectangle
Use the oval or rounded shape for start and end terminators. Label them Start or End. Every flowchart should have exactly one start and one or more end terminators.
Flow Arrows — Connector Tool
Use the arrow tool for flow direction between shapes. For crossing flows, use the pen to draw a bridge curve over existing arrows to show they do not connect.
Text Labels on Arrows
Click the text tool and place labels on decision arrows (Yes, No, Error, Retry) and on process arrows where the transition has a specific condition.
Swimlanes — Sticky Note Headers
For swimlane diagrams, use long sticky notes or text boxes as horizontal lane headers. Draw lanes as rectangles spanning the full width, and place process steps within each lane.
Annotation — Pen Tool
Add handwritten notes and callout arrows with the pen tool to annotate specific steps with context, assumptions, or technical requirements.
Multiple Diagram Versions
Keep different versions of a flowchart on separate boards — current state on one board, future state on another, for easy side-by-side comparison.
PDF Export for Documentation
Export completed flowcharts as PDF for requirements documents, process manuals, and technical specifications.
How to Draw a Flowchart — From Blank to Done
Structure first, then shapes, then connections.
Outline Your Steps First
Before drawing, list the steps in your process as text in a corner of the canvas. Count the decision points. This outline becomes your drawing blueprint and prevents having to rearrange shapes later.
Draw Shapes Top to Bottom
Start at the top with the start terminator (oval). Draw process rectangles downward. Place diamonds at each decision point. Add end terminators at each exit path. Leave space between shapes for connecting arrows.
Add Arrows, Labels, and Export
Use the arrow tool to connect all shapes following your flow. Label decision branches Yes/No. Add a title with the text tool. Export as PDF for documentation or sharing.
Frequently Asked Questions
Can I draw a proper flowchart without dedicated software?
Yes — rectangles, diamonds, ovals, and arrows are all you need for standard flowchart notation, and all are in the whiteboard toolbar. For complex multi-layer diagrams needing auto-layout, Lucidchart is better suited.
How do I draw a decision diamond?
Select the shape tool and choose the diamond option. Click and drag to set its size. Place it at your decision point and label the inside with the condition text. Draw arrows from the bottom (Yes) and one side (No) to the next steps.
Can I make swimlane diagrams?
Yes — draw horizontal rectangles across the canvas for lanes. Label each lane with the text tool or a sticky note. Place process shapes inside each lane and connect with arrows that cross lane boundaries.
Can I export my flowchart as a PDF for a document?
Yes — click the PDF button to download. The flowchart exports cleanly at full resolution with no watermark. See PDF guide →
Is this good for user flow diagrams for product design?
Yes — draw screen wireframes or named boxes for each screen, connect them with arrows labelled with user actions, and you have a complete user flow. See wireframing guide →
What is the difference between a flowchart and a mind map?
A flowchart shows a process with a defined direction and decision branches — it has a clear start, flow, and end. A mind map shows associations between concepts without a defined direction. See mind maps guide →