README.md

April 21, 2026 · View on GitHub

DDD Toolbox Logo DDD Toolbox

A comprehensive collection of Domain-Driven Design tools to help you model complex business domains, facilitate collaborative workshops, and create shared understanding across your organization.

Try Domain Storytelling →
Try Event Storming →
Try Bounded Context Canvas →

About

DDD Toolbox is a modern web application that provides strategic design tools for Domain-Driven Design practitioners. Whether you're conducting collaborative workshops, mapping domain boundaries, or documenting complex business processes, our tools help bridge the gap between domain experts and development teams.

Strategic Design Tools

🎯 Currently Available

  • Domain Storytelling - Visualize and communicate domain knowledge through collaborative storytelling. Create pictorial domain models that bridge the gap between domain experts and development teams. Demo

  • Event Storming - Rapidly discover business processes and identify domain boundaries through collaborative workshop techniques. Map out the flow of domain events across your system. Demo

  • Bounded Context Canvas - Document and design your bounded contexts using a structured canvas approach. Capture business model, ubiquitous language, and integration patterns. Demo

📋 Planned

  • Context Mapping - Define and visualize relationships between bounded contexts. Understand integration patterns and team interactions across different parts of your domain.

  • Aggregate Design Canvas - Design and document your aggregates using a structured canvas approach. Define aggregate boundaries, invariants, and behavioral patterns.

  • Domain Message Flow - Model the flow of messages and events between different parts of your system. Visualize how information moves across bounded contexts.

Why this project?

The Challenge of Modern DDD Workshops

Organizing effective Domain-Driven Design workshops in today's work environment has become increasingly difficult:

  • Remote and hybrid work makes collaborative modeling sessions harder to coordinate
  • Paper-based workshops are difficult to review, iterate on, and share with distributed teams
  • Generic whiteboard tools lack the specific semantics and constraints needed for DDD strategic design

The Need for Purpose-Built Tools

Although collaboration tools and paid whiteboard templates are available, there's a clear lack of purpose-built solutions for DDD strategic design. We need:

  • Semantically-aware tools that understand DDD concepts and patterns
  • Guided workflows that follow established DDD practices and methodologies
  • Iteration-friendly interfaces that make it easy to refine and evolve domain models
  • Accessible, open-source solutions that don't require expensive licenses

DDD Toolbox aims to address this lack by providing purpose-built, free tools that understand the nuances of Domain-Driven Design and facilitate effective strategic design sessions.