Excalidraw: Open-Source Whiteboard for Visual Collaboration

Visualizing Ideas with Excalidraw in the Modern Workplace

When technical teams and business stakeholders need to align on a complex process, words often fall short. Visual collaboration is the bridge between a conceptual idea and a concrete plan. Excalidraw is an open-source virtual whiteboard designed specifically for this purpose. It allows users to sketch hand-drawn-like diagrams, wireframes, and flowcharts on an infinite canvas. What sets Excalidraw apart is its distinct, approachable aesthetic—by rendering shapes with a slightly wobbly, hand-drawn look, it removes the pressure of creating perfect, rigid diagrams. This encourages broader team participation, as employees feel more comfortable sketching out ideas when they don't have to worry about pixel-perfect alignment.

For a small-to-medium business, Excalidraw serves as a lightweight, highly responsive tool for mapping out network topologies, software architectures, user journey maps, and organizational charts. Because it is built on web technologies, it runs entirely in the browser, meaning there is zero client-side installation required. Teams can collaborate in real-time, seeing each other's cursors and changes instantly, making it an ideal companion for remote or hybrid work environments common in the Vancouver and Portland metro areas.

Evaluating Excalidraw Against Premium SaaS Whiteboards

The market for digital whiteboards is dominated by commercial giants like Miro, Lucidchart, and Microsoft Visio. While these tools are feature-rich, they come with recurring subscription costs that can quickly eat into an SMB's IT budget. A standard Miro business plan, for example, can cost around $16 per user per month. For a growing team of 50 employees, that translates to nearly $9,600 annually. Excalidraw, on the other hand, is completely free and open-source (boasting over 134,000 stars on GitHub).

When comparing the two, the trade-offs are clear:

• Cost Savings: Excalidraw eliminates per-user licensing fees. You can invite an unlimited number of collaborators without worrying about upgrading your tier.
• Feature Differences: Premium tools offer extensive Jira/Confluence integrations, advanced voting systems, and massive template libraries. Excalidraw focuses on speed and simplicity. It supports exporting to PNG, SVG, and Excalidraw-native formats, and offers a library of community-created shapes, but lacks deep third-party project management integrations.
• Data Ownership: With SaaS tools, your proprietary diagrams live on someone else's server. By self-hosting Excalidraw, your intellectual property never leaves your infrastructure.

Practical Deployment Scenarios for Growing Teams

Deploying Excalidraw for your business is surprisingly straightforward. The official public instance at Excalidraw.com is great for quick, non-sensitive brainstorming, but for business use, self-hosting is the recommended path. The application is distributed as a Docker container, making deployment trivial on any standard Linux server or cloud instance.

Here is what a typical deployment looks like for an SMB:

1. Hardware/Hosting: Excalidraw is incredibly lightweight. A basic virtual machine with 1 vCPU and 1GB of RAM is more than sufficient to host the application and handle dozens of concurrent users. You can host this on-premises or in a cloud provider like Microsoft Azure.
2. Containerization: Using Docker Compose, you can pull the official Excalidraw image and spin up the service in seconds. Pairing it with a reverse proxy like Nginx Proxy Manager or Traefik allows you to easily assign a custom domain (e.g., whiteboard.yourcompany.com) and provision SSL certificates.
3. Maintenance: Maintenance is minimal. Updates are as simple as pulling the latest Docker image and restarting the container. Because Excalidraw does not rely on a traditional backend database for storing files (collaboration is handled via WebSockets and files are stored locally in the browser or exported), there are no complex database backups to manage.

Real-world use cases include rapid UI wireframing for marketing teams, mapping out Azure cloud migration paths for IT departments, and creating visual standard operating procedures (SOPs) for HR.

Securing Your Self-Hosted Excalidraw Instance

While Excalidraw does not natively include complex user authentication and role-based access control out of the box, securing it for business use is highly achievable using standard IT best practices. Because the diagrams you create may contain sensitive network layouts or proprietary business logic, you should never expose a raw Excalidraw instance directly to the public internet.

To secure your deployment, consider the following best practices:

• Network Segmentation: Host Excalidraw on an internal subnet and require employees to connect via a VPN (such as WireGuard) to access the whiteboard. This ensures only authenticated network users can view or edit diagrams.
• Reverse Proxy Authentication: If you need external access for contractors, place Excalidraw behind a reverse proxy that supports authentication. Tools like Authelia or OAuth2 Proxy can intercept traffic and require users to log in via your existing Identity Provider (like Microsoft Entra ID) before reaching the Excalidraw canvas.
• HTTPS Enforcement: Always encrypt traffic in transit. Use Let's Encrypt to provide SSL/TLS certificates, ensuring that the real-time collaboration data passing over WebSockets is secure.
• Export and Backup Policies: Since Excalidraw saves files to the browser's local storage by default, train your team to export critical diagrams as .excalidraw or SVG files and store them in a centralized document repository like SharePoint or Nextcloud.

How Beawit Consulting Leverages Excalidraw for Client Success

At Beawit Consulting, we use Excalidraw in production to streamline our IT service delivery. When designing a hybrid cloud architecture or planning a network engineering overhaul for a local business, we need a tool that allows our engineers and the client's stakeholders to collaborate without friction. We have found that traditional tools like Visio often slow down the initial brainstorming phase due to their rigid snapping and formatting rules.

By utilizing a self-hosted Excalidraw instance, we can instantly generate a shareable link during a client meeting, sketch out the proposed network topology in real-time, and make adjustments based on immediate client feedback. The hand-drawn aesthetic keeps the focus on the architecture itself rather than the formatting of the boxes. Once the conceptual design is approved, we export the diagram to SVG and include it in the final project documentation. This approach has saved us countless hours and eliminated the need for additional SaaS subscriptions, allowing us to pass those operational savings directly to our clients.

Beawit Consulting provides comprehensive IT services to small and medium businesses in the Vancouver/Portland metro area. We specialize in Microsoft Azure, M365, hybrid cloud, network engineering, and infrastructure automation.

Contact us at contactus@beawit.net or call (360) 399-6834.

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