Drill, never get lost
Every diagram is one click away from the next level of detail. A breadcrumb at the top tells you exactly where you are — Payment System → API → Orders Service → OrderRepository — so the path back is always one click away too.
See your software like a map
C4Lens turns architecture into a map you can zoom into. Start at the big picture of your business, then drill down — one click at a time — through systems, services, components, and the code itself. Everyone on the team sees the same software at the level of detail they actually need.
How it works · The C4 zoom
Click any element to step deeper. Each level is its own diagram, tuned for a different conversation — so executives, architects, and developers can each look at the level they care about, without losing the context that connects them.
The 30 000-foot view. Your software, the people who use it, and the other systems it talks to. No tech jargon — just what does this thing do, and for whom?
Open the box. The major moving parts: web apps, services, databases, queues — and how data flows between them. Enough detail to plan, not so much that it overwhelms.
Inside one container. The named building blocks of the codebase, their responsibilities, and the wires between them. Where design decisions become visible.
The bottom of the well. UML classes, interfaces, database tables, message schemas, queue topics — the artefacts engineers reach for when implementing or debugging.
Every diagram is one click away from the next level of detail. A breadcrumb at the top tells you exactly where you are — Payment System → API → Orders Service → OrderRepository — so the path back is always one click away too.
Save any diagram as a crisp SVG or PNG for slides, or export the whole tree as PlantUML. Nothing is locked inside the tool — your architecture stays portable, versionable, and reviewable like the code it describes.
Each diagram has an owner. Share it with teammates inside your organisation — read-only or edit — without giving away the keys to everything else. Architects steer; developers stay in the loop.
Most architecture tools speak only to architects. C4Lens is designed so the same diagram can be opened by anyone in your team — and they each find what they came for.
No download, no sign-up paperwork. If your organisation already has an account, pick your workspace and dive in.