Free Online Whiteboard for Diagrams
Draw flowcharts, mind maps, org charts, process diagrams, and concept maps directly in your browser. Shapes, arrows, connectors, and text tools â all free, no login, export to PNG or PDF.
Types of Diagrams You Can Create
From quick sketches to structured professional diagrams â all on one free canvas.
Flowcharts
Draw process flows with rectangles, diamonds (decisions), and arrows. Map out workflows, algorithms, approval processes, and step-by-step procedures clearly.
Mind Maps
Create radial mind maps for brainstorming, studying, and idea organization. Central idea with branches spreading out â draw and label freely.
Org Charts
Draw organizational structures and hierarchy diagrams. Boxes connected by lines showing reporting relationships for teams, companies, and departments.
Process Diagrams
Map business processes, manufacturing flows, and operational sequences. Swimlane-style diagrams for multi-team processes and handoffs.
Network Diagrams
Sketch IT infrastructure, network topology, server relationships, and system architecture with shapes, lines, and labels.
Wireframes & UI Sketches
Rough wireframe layouts for web and app interfaces. Boxes for elements, arrows for navigation flow â fast ideation without heavy tools.
Concept Maps
Show relationships between concepts for studying and teaching. Nodes connected by labeled arrows showing how ideas relate to each other.
SWOT & Strategy Diagrams
Draw 2x2 matrices, SWOT diagrams, decision matrices, and strategy canvases for business planning and analysis sessions.
Science & Technical Diagrams
Draw circuit diagrams, lab setups, biological structures, chemical processes, and technical schematics with precise shapes and annotations.
Diagramming Tools Built Into the Whiteboard
Shape Library
Rectangles, circles, triangles, and custom shapes. Use them as flowchart nodes, diagram elements, and containers.
Arrows & Connectors
Straight lines, curved arrows, and flowchart-style connectors. Point-to-point connections between diagram nodes.
Text Labels
Add text inside shapes or as floating labels. Label every element of your diagram clearly with custom font size and color.
Grid & Rulers
Enable grid overlay for aligned, organized diagram layouts. Rulers for proportional spacing between elements.
Zoom Canvas
Zoom in for detailed work on complex diagrams, zoom out to review the full layout. No canvas size limits.
Unlimited Undo
Restructure diagrams freely. Undo and redo any number of steps as your diagram evolves.
Tips for Drawing Great Diagrams
Diagram Whiteboard FAQ
Can I make diagrams on a free online whiteboard?
Yes. OnlineWhiteboard.org includes all the tools for diagrams â shapes, lines, arrows, text labels, and grid support. Create flowcharts, mind maps, org charts, and more for free with no login.
Is this a good free alternative to Lucidchart or draw.io?
For quick, freehand-style diagrams and sketches â yes. OnlineWhiteboard.org is ideal for fast diagramming in meetings, teaching, and brainstorming. For large, complex structured diagrams with strict connector snapping, dedicated diagramming tools offer more precision. But for most use cases, our free whiteboard handles it well.
Can I export my diagram as PDF?
Yes. Export any diagram as PNG or PDF in one click. No watermarks, no account, no cost. PDF exports are great for presentations and formal documents.
Can I draw flowcharts on mobile?
Yes. OnlineWhiteboard.org works on phones and tablets. Touch drawing is supported. For complex flowcharts, a larger screen or tablet with stylus gives the best experience.