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Day 34: Spacedeck Open – Open-Source Collaborative Whiteboard – 7 Days of Docker

20. July 2025
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Table of Contents

What is Spacedeck Open?

Spacedeck Open is a web-based, real-time collaborative whiteboard application with rich media support. It’s an open-source platform that allows multiple users to work together on digital whiteboards, making it ideal for:

  • Collaborative brainstorming and ideation sessions
  • Mood boards and collages creation
  • Digital whiteboarding for remote teams
  • Design thinking workshops and planning
  • Educational collaborative activities

Key Features:

  • Real-time collaboration with multiple users
  • Rich media support (images, videos, documents)
  • Web-based interface accessible from any browser
  • Open source and self-hostable
  • Integration capabilities (used by Nextcloud for their whiteboard feature)

Project Background:

Originally developed between 2011-2016, Spacedeck was later open-sourced and is now maintained by the community. The main repository is hosted at GitHub – spacedeck/spacedeck-open.

Prerequisites

Before starting, ensure you have:

  • Docker Engine installed
  • Docker Compose installed
  • At least 2GB of available RAM
  • Network access for downloading images

Method 1: Official Docker Compose (Recommended for Testing)

Step 1: Create Project Directory

Step 2: Create docker-compose.yml

Create a docker-compose.yml file with the following content:

Step 3: Start the Application

Step 4: Access Spacedeck

Open your browser and navigate to http://localhost:9666

Method 2: Build from Source

If you prefer to build from the source code:

Step 1: Clone the Repository

Step 2: Use the Repository’s Docker Compose

Method 3: Enhanced Docker Setup (Community Alternative)

For a more robust setup, you can use the community-improved Docker image:

Production Configuration

For production deployments, consider this enhanced setup:

Environment Variables

Key environment variables you can configure:

Variable
Default
Description
NODE_ENV
development
Set to ‘production’ for production
PORT
9666
Port the application listens on
DATABASE_URL
sqlite
Database connection string
SPACEDECK_DB_PATH
./storage
Database file location
SPACEDECK_UPLOADS_PATH
./public/uploads
Upload directory

 

How Spacedeck Open Compares to Other Open Source Whiteboards

Key Differentiator: Rich Media Support

The biggest advantage of Spacedeck Open is its comprehensive rich media support. While most open source whiteboards focus on drawing and text, Spacedeck excels at handling diverse content types:

  • Images, videos, and audio clips – Full multimedia integration
  • Document embedding – PDFs and other file types
  • Layout-focused design – Optimized for arranging different content types
  • Mood board capabilities – Perfect for design thinking and visual collaboration

Detailed Comparison with Major Alternatives

Spacedeck Open vs Excalidraw

Feature
Spacedeck Open
Primary Focus
Rich media layouts & collaboration
Hand-drawn style diagrams
Media Support
Yes Images, videos, audio, documents
No Basic images only
Drawing Style
Clean, professional
Yes Unique hand-drawn aesthetic
Real-time Collaboration
Yes Full collaborative editing
Limited Limited in self-hosted version
Use Case
Mood boards, presentations, mixed media
Diagrams, flowcharts, sketches
Deployment
Self-hosted, Docker ready
Web-based, self-hostable

Winner for: Spacedeck for multimedia presentations and collaborative mood boards; Excalidraw for quick diagram sketching.

Spacedeck Open vs WBO (Whitebophir)

Feature
Spacedeck Open
Complexity
Feature-rich, more complex
Yes Extremely simple and lightweight
Media Support
Yes Full multimedia support
No Basic drawing and text only
Collaboration
Yes Advanced collaboration features
Yes Simple real-time drawing
Object Manipulation
Yes Move, resize, layer objects
No No object manipulation after drawing
Setup
Moderate setup complexity
Yes Minimal setup, instant deployment
Resource Usage
Higher resource requirements
Yes Very lightweight

Winner for: Spacedeck for professional collaborative work; WBO for quick, simple brainstorming sessions.

Spacedeck Open vs OpenBoard

Feature
Spacedeck Open
Target Audience
Business teams, designers, general use
Yes Schools and universities (educational focus)
Web-based
Yes Full web application
No Desktop application primarily
Collaboration
Yes Multi-user real-time collaboration
No Single-user focused
Media Support
Yes Rich multimedia integration
Limited Basic media support
Educational Tools
Basic
Yes Advanced educational features
Presentation Mode
Basic
Yes Full presentation capabilities

Winner for: Spacedeck for web-based team collaboration; OpenBoard for educational presentations and teaching.

Spacedeck Open vs tldraw

Feature
Spacedeck Open
Technology
Full-stack application
Yes React SDK, developer-friendly
Customization
Limited customization
Yes Highly customizable SDK
Rich Media
Yes Comprehensive media support
Limited Limited media capabilities
Out-of-box Usage
Yes Ready-to-use application
Limited Requires development for full features
AI Integration
None
Yes Built-in AI features
Developer Experience
Standard deployment
Yes Excellent developer tools and SDK

Winner for: Spacedeck for immediate deployment and media-rich collaboration; tldraw for developers building custom whiteboard solutions.

Spacedeck Open vs AFFiNE

Feature
Spacedeck Open
Scope
Yes Focused whiteboard solution
Comprehensive knowledge base + whiteboard
Complexity
Yes Simple, dedicated whiteboard
Complex all-in-one platform
Rich Media
Yes Excellent multimedia support
Limited Good but secondary to note-taking
Note Integration
Basic
Yes Advanced note-taking and knowledge management
Learning Curve
Yes Quick to learn
Steeper learning curve
Resource Usage
Yes Lighter resource requirements
Higher resource requirements

Winner for: Spacedeck for dedicated whiteboarding; AFFiNE for comprehensive knowledge management with whiteboard features.

Spacedeck Open’s Unique Strengths

1. Rich Media Integration

Unlike most open source alternatives that focus on drawing and basic shapes, Spacedeck excels at:

  • Video embedding and playback – Perfect for multimedia presentations
  • Audio clip integration – Unique among open source whiteboards
  • Document handling – PDFs and other file types as first-class objects
  • Image manipulation – Advanced image handling and positioning

2. Layout-Focused Design Philosophy

While other tools prioritize drawing, Spacedeck emphasizes content arrangement and layout:

  • Perfect for mood boards and collages
  • Excellent for design thinking workshops
  • Ideal for multimedia presentations
  • Great for content curation and organization

3. Enterprise Integration Capabilities

Spacedeck has proven enterprise integration:

  • Nextcloud integration – Used as the backend for Nextcloud’s whiteboard feature
  • API availability – Built for integration with other systems
  • Scalable architecture – Designed for multi-user environments

4. Mature Collaboration Features

Compared to simpler alternatives, Spacedeck offers:

  • Real-time multi-user editing without limitations
  • Object-level collaboration – Users can work on different elements simultaneously
  • Persistent state management – Reliable data persistence across sessions
  • User awareness features – See who’s working on what

When to Choose Spacedeck Open

Choose Spacedeck Open if you need:

  • Rich multimedia support (videos, audio, documents)
  • Layout and arrangement focused workflows
  • Mood boards, collages, or design thinking
  • Professional collaborative presentations
  • Integration with enterprise systems (like Nextcloud)
  • Persistent, complex collaborative projects

Consider alternatives if you need:

  • Simple, quick sketching → Use WBO or Excalidraw
  • Hand-drawn diagram aesthetics → Use Excalidraw
  • Educational presentations → Use OpenBoard
  • Custom development/SDK → Use tldraw
  • Knowledge management + whiteboard → Use AFFiNE
  • Minimal resource usage → Use WBO

Current Limitations of Spacedeck Open

To be fair, Spacedeck Open does have some challenges:

  • Maintenance concerns – As noted by Nextcloud developers, the project has had maintenance issues
  • Scalability questions – Some users report concerns about scaling to large teams
  • Resource requirements – More resource-intensive than simpler alternatives
  • Setup complexity – More complex to deploy than lightweight alternatives
  • Active development – Less frequent updates compared to newer projects

Conclusion

Spacedeck Open stands out primarily for its rich media capabilities and layout-focused approach. If your use case involves:

  • Multimedia presentations and mood boards
  • Design thinking and creative collaboration
  • Enterprise integration needs
  • Complex, persistent collaborative projects

Then Spacedeck Open offers capabilities that most other open source whiteboards simply don’t provide. However, for simpler drawing and diagramming needs, lighter alternatives like WBO or Excalidraw might be more appropriate.

The choice ultimately depends on whether you need Spacedeck’s unique multimedia capabilities or if simpler drawing-focused tools will suffice for your use case.

Let’s Talk!

Looking for a reliable partner to bring your project to the next level? Whether it’s development, design, security, or ongoing support—I’d love to chat and see how I can help.

Get in touch,
and let’s create something amazing together!

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Alexander

I am a full-stack developer. My expertise include:

  • Server, Network and Hosting Environments
  • Data Modeling / Import / Export
  • Business Logic
  • API Layer / Action layer / MVC
  • User Interfaces
  • User Experience
  • Understand what the customer and the business needs


I have a deep passion for programming, design, and server architecture—each of these fuels my creativity, and I wouldn’t feel complete without them.

With a broad range of interests, I’m always exploring new technologies and expanding my knowledge wherever needed. The tech world evolves rapidly, and I love staying ahead by embracing the latest innovations.

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