Model your architecture
Uxxu provides a structured way to describe and visualize software architecture using the **C4 model**. Teams can create diagrams that represent systems at different levels of abstraction while maintaining consistency between architecture elements and their relationships. Instead of disconnected drawings, Uxxu allows teams to define reusable architecture elements and describe how they interact, creating a living architecture model that evolves with your systems.
Modeling Capabilities
C4 Architecture Diagrams
Create System Context, Container, and Component diagrams to represent your architecture at multiple levels of abstraction.
Start with a high-level view of the system and progressively move into more detailed internal structures.Architecture Elements
Define and reuse core architecture elements across diagrams, including:- Actors
- Systems
- Applications
- Containers
- Components
- Data Stores
- Groups
These elements form the building blocks of your architecture model.
Workflows & Interactions
Model the workflows and relationships between elements, showing how systems communicate, how services interact, and how data flows across the architecture.Structured Architecture Modeling
Because architecture elements are defined as structured objects rather than simple shapes, diagrams remain consistent and reusable across projects.Architecture as a Living Model
As systems evolve, diagrams can be updated while maintaining the relationships between elements, ensuring your architecture documentation remains accurate and useful over time.
Why Uxxu
Uxxu transforms architecture diagrams from static visuals into a structured architecture model.
This allows teams to maintain consistency across diagrams, understand system relationships, and clearly communicate architecture across the organization.
Get started with Uxxu
Uxxu is a collaborative software architecture platform built around the C4 model. Teams use Uxxu to design, document, analyze, and evolve complex systems. Move beyond static architecture diagrams with connected views, dependency intelligence, technology lifecycle management, and real-time collaboration.
Start modeling your architecture today. Organize systems into projects, create C4 diagrams at multiple levels of detail, connect diagrams together, and explore architecture insights that help your team understand complexity and manage technical debt.
Frequently Asked Questions
What is the C4 model?
The C4 model is a lightweight approach to software architecture documentation created by Simon Brown. It describes architecture using four levels of diagrams: Context, Container, Component, and Code. Each level provides a different level of detail, allowing teams to communicate architecture clearly to different audiences. Uxxu is built around the C4 model and supports Context, Container, and Component diagrams out of the box.
How does Uxxu differ from traditional diagram tools?
Traditional diagram tools like Draw.io, Lucidchart, or Miro treat architecture diagrams as collections of shapes and arrows. Uxxu treats architecture as a structured model. Architecture elements such as systems, actors, applications, containers, components, and stores are defined once and reused across multiple diagrams. This means diagrams stay consistent, relationships are tracked, and the architecture can be analyzed to produce insights about complexity, dependencies, and technology usage.
Can multiple teams collaborate on the same architecture in Uxxu?
Yes. Uxxu is designed for team collaboration. Organizations can invite collaborators as Viewers, Editors, or Administrators. Multiple users can work on diagrams and architecture elements simultaneously. Architecture is organized into organizations, projects, and subprojects so different teams can manage their own sections while still contributing to a shared organizational architecture model. This makes Uxxu suitable for both small engineering teams and large organizations managing multiple products and domains.
How does Uxxu handle large and complex architectures?
Uxxu is built to scale with architecture complexity. Large systems can be broken down into organizations, projects, and subprojects. Diagrams are connected together so teams can navigate from a high-level system context down to detailed container and component views. Architecture elements are shared across related projects to maintain consistency. Built-in analytics provide metrics such as architecture size, diagram density, and dependency concentration to help teams understand how their architecture is growing and where complexity is accumulating.
What is technology lifecycle management in Uxxu?
Technology lifecycle management in Uxxu allows teams to tag architecture elements with the technologies they use and assign each technology a lifecycle status: Future, Production, Deprecated, or Removed. This makes it possible to track which technologies are actively used, which are being phased out, and which are planned for future adoption. Teams can then generate reports showing the distribution of technology lifecycle stages across the entire architecture, helping them prioritize modernization efforts and manage technical debt proactively.
Is there a free plan available?
Yes. Every organization in Uxxu includes a free plan that supports up to 100 architecture items. This is enough to model a meaningful architecture and explore all the core features of the platform before committing to a paid plan. Architecture items include systems, actors, applications, containers, components, stores, and groups. Diagrams are not counted toward the item limit. Paid plans unlock higher item limits, advanced analytics, real-time collaboration features, and priority support.