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Start drawing precision diagrams. Use the toolbar to create objects or select tools.
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Paste any Mermaid code (TD, LR, Gitflow, CQRS, Webhooks) or select presets to render live vector shapes.
Interactive visual table editor with SQL parser, Primary / Foreign keys, and connected multi-table kits.
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Try searching for "Kubernetes", "DevOps", "Database", "Kanban", or "Flowchart".
No matching vector icons found.
Try searching for "AWS", "GCP", "Kubernetes", "Kafka", "React", or "Postgres".
Turn formatted code into styled presentation cards for your whiteboard
Web Online Board is an ultra-fast, 100% free online whiteboard and browser based drawing board designed for seamless visual thinking. From freehand sketching with a pen and neon highlighter to real-time team collaboration, cloud architecture modeling, and classroom teaching, Web Online Board gives you the power of a pro digital whiteboard with zero sign-up friction.
Works completely in your browser without requiring account creation, login, or software downloads. Data is saved safely to local storage.
Pause your pen stroke for 0.4s to automatically transform rough hand-drawn sketches into clean geometric shapes and arrows.
Includes 6 professional canvas patterns: Math Graph Paper, Ruled Notebook Paper, 3D Isometric, Dot Grid, Cross, and Blank.
Collaborate in real time with friends and remote teams, or install offline as a desktop/tablet PWA app.
Export your diagrams anytime in high-resolution PNG (up to 4K), Scalable Vector Graphics (SVG), printable PDF workbooks, or .json project backup files.
Start drawing precision diagrams. Use the toolbar to create objects or select tools.