Design. Understand. Evolve Your Architecture
Uxxu is a collaborative software architecture platform built around the C4 model that enables teams to design, document, analyze, and evolve complex systems. Move beyond static architecture diagrams with dependency intelligence, technology lifecycle management, architecture analytics, and real-time collaboration.
Connected C4 Architecture
Create C4 diagrams that linktogether into a navigable architecture model. Navigate from Context diagrams to Container diagrams to explore how your systems are structured.
Collaborate in real time
Design and evolve architecture together using a shared, collaborative workspace. Real-time diagram editing, shared architecture workspaces, and organization-wide visibility ensure everyone works from the same source
Analyze your Architecture
Turn architecture diagrams into insights. Uxxu analyzes your architecture model to reveal complexity, dependencies, and potential risks such as single points of failure, helping teams understand and improve system design.
Give it a Go!
Explore this shared architecture diagram and see how Uxxu diagrams can be embedded into any website or documentation
LLM Diagramming
Teach your LLM how to create architecture diagrams with Uxxu
Uxxu ships with an MCP server so Claude Code, Codex, OpenClaw, and other MCP-capable clients can connect directly to your Uxxu workspace. Give your model a specification, let it create the C4 diagram, and keep the result inside Uxxu instead of in a throwaway image.
Works with
Connect
Install `uxxu-mcp`, add your API key, and register it with Claude Code, Codex, or OpenClaw.
Instruct
Teach the model your diagramming style and ask for system context, container, or component diagrams in plain English.
Create
Uxxu handles layout, connector choice, technology matching, and stores the finished diagram in your project.
Example Prompt
Use the uxxu MCP. In my Uxxu project "Architecture Demo", create a C4 container diagram for a healthcare patient portal with a web portal, mobile app, API gateway, messaging service, EHR integration, audit logging, and notification delivery.What Uxxu handles automatically
- ELK layout before import
- best connector matching for links
- technology matching against the Uxxu catalog
- viewer links back to the created diagram
Architecture knowledge is fragmented
Most software teams document architecture using a mix of diagrams, documents, and wikis.
Over time this creates problems:
- Architecture diagrams that are not linked together
- Documentation that quickly becomes outdated
- Teams working in isolation
- Difficult onboarding for new engineers
- Limited visibility into system dependencies
Architecture knowledge becomes scattered across tools and teams, creating silos and making it harder to understand how the system actually works.
Uxxu keeps your architecture connected
Instead of isolated diagrams, Uxxu creates a living architecture model where everything is linked.
With Uxxu you can:
- Create C4 diagrams and deployment diagrams
- Organize architecture into projects and organizations
- Define systems, actors, applications, stores, and domain objects
- Link diagrams together and drill down into deeper architecture levels
- Attach documentation and technology information
- Annotate relationships between architecture elements
Your architecture becomes navigable, structured, and shared across teams.
See it in action
The C4 Model for Software Architecture
The C4 model is a simple and structured way to describe software architecture using a small set of diagrams that show different levels of detail. It helps teams understand systems from a high-level overview down to the individual components that make them work. Uxxu supports the full C4 model, allowing you to navigate architecture from the big picture to the technical implementation.Here are the diagrams that UxxU can help you with.
Context Diagram
Shows the system from a high-level perspective and how it interacts with users and external systems. It helps stakeholders understand what the system does and how it fits into the larger environment.
Container Diagram
Zooms into the system and shows the main applications or services such as web apps, APIs, and databases. It explains how the system is structured internally and how its main parts communicate.
Component Diagram
Provides a deeper view inside a container, showing the main components or modules that implement the functionality. It helps developers understand how the code is organized.
Deployment Diagram
Shows how the system is deployed across infrastructure such as servers, containers, and cloud services, helping teams understand how the software runs in production.
How UxxU Works?
Why Teams Choose Uxxu
Purpose-Built for C4
Unlike general diagramming tools, Uxxu is designed specifically for software architecture. Architecture elements — systems, containers, components, actors — are first-class entities with defined relationships, not just boxes and arrows.
Navigable Architecture
Drill down from a system context view into container and component detail, then navigate back up. Teams always know where they are in the architecture. No more hunting through disconnected files and folders to understand a system.
Living Documentation
Architecture diagrams that evolve with the software rather than becoming outdated artifacts. Track technology lifecycle status, manage dependencies, and generate analytics that help teams understand how complexity is growing over time.
From the Blog
Architecture insights, C4 model guides, and team collaboration tips.
The Definitive Guide to the C4 Model
A reference-grade guide to understanding and applying the C4 Model for software architecture diagrams.
Uxxu vs Draw.io: From Static Diagrams to Living Architecture
Why generic diagram tools fail as architecture documentation and how Uxxu turns C4 diagrams into living system documentation.
Uxxu vs Structurizr: DSL to Navigable Architecture
Why architecture navigation, drill-down views, and living documentation matter beyond C4 diagram generation.