
Excalidraw
Virtual whiteboard for hand-drawn style diagrams and collaboration
- Stars
- 120,255
- License
- MIT
- Last commit
- 18 days ago
Collaborative online whiteboards for workshops, ideation, mapping and team brainstorming.
Online whiteboards enable distributed teams to visualize ideas, map processes, and conduct interactive workshops without physical constraints. Open-source options allow organizations to self-host, customize code, and avoid recurring subscription fees. Commercial SaaS platforms typically offer richer template libraries, integrated video chat, and enterprise-grade security, but they require ongoing licensing. Choosing between them depends on factors such as deployment preferences, required integrations, and budget constraints.

Virtual whiteboard for hand-drawn style diagrams and collaboration

Infinite canvas drawing app optimized for performance and simplicity

Configurable JavaScript diagramming and whiteboarding visualization application
Virtual whiteboard for hand-drawn style diagrams and collaboration
tldraw provides a powerful React SDK to build infinite‑canvas whiteboards, supporting real‑time collaboration, rich drawing tools, and seamless integration with web apps.
Expect a strong TypeScript presence among maintained projects.
Open-source tools are free to use and can be self-hosted, reducing per-user fees, while SaaS solutions usually charge per seat or feature tier.
Assess whether the solution can be installed on-premises or in a private cloud, and evaluate the complexity of setup and maintenance.
Measure latency, concurrency limits, and how well the platform handles simultaneous edits across large teams.
Determine if the tool provides plugins, SDKs, or REST APIs that allow integration with existing workflows and custom features.
Review authentication methods, data encryption, audit logs, and compliance certifications relevant to your industry.
Open-source projects rely on community contributions and issue trackers, whereas SaaS vendors typically offer dedicated support channels and SLAs.
Most tools in this category support these baseline capabilities.
Diagramming & visual collaboration for flowcharts, org charts, and whiteboards
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Collaborative online whiteboard for workshops, brainstorming, and planning
Creately is a visual workspace for teams to map processes and ideas with flowcharts, org charts, mind maps, ER diagrams, and more. It offers an infinite canvas, real-time multiplayer editing, comments/mentions, data-linked shapes, templates, and integrations with tools like Confluence, Jira, and Slack.
Teams use a shared canvas to post sticky notes, sketch concepts, and vote on ideas in real time during virtual meetings.
Product managers create timeline diagrams and feature buckets, allowing stakeholders to comment and adjust priorities collaboratively.
Facilitators guide participants through structured activities-such as user journey mapping and solution sketching-on a digital whiteboard.
Instructors and students co-create diagrams, solve problems, and annotate lecture slides, supporting interactive learning.
Engineers draft architecture diagrams, flowcharts, and network topologies, then export them for documentation or presentations.
What is the difference between open-source and SaaS whiteboard tools?
Open-source tools can be self-hosted and modified, typically with no licensing fees, while SaaS solutions are hosted by the vendor and charge subscription fees for access and support.
Can I integrate an open-source whiteboard with my existing authentication system?
Many open-source projects expose APIs or support SSO standards (e.g., OAuth, SAML), allowing integration with corporate identity providers.
How does real-time performance compare across popular whiteboard platforms?
Performance varies based on architecture; tools like Excalidraw and tldraw use lightweight data models for low latency, whereas feature-rich SaaS platforms may introduce higher overhead but offer more collaboration tools.
Is it possible to export a board for offline use?
Most platforms provide export options to image formats (PNG, SVG) or PDFs, enabling offline viewing and inclusion in documentation.
What security measures should I look for in a self-hosted whiteboard?
Key measures include TLS encryption for data in transit, role-based access control, audit logging, and the ability to run the service behind a corporate firewall.
Do open-source whiteboards have active community support?
Projects such as Excalidraw and draw.io have sizable GitHub communities, issue trackers, and documentation, though response times can vary compared to vendor-backed SaaS support.