These tools often paired with

Structurizr⚠ StalevsSwimm

Code-first C4 model architecture diagrams as structured text versus AI-powered internal code docs synced to codebase

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Choose Structurizr when…

  • You're doing structured C4 architecture modeling
  • Simon Brown's C4 model is your diagramming approach
  • You need a formal software architecture documentation tool

Choose Swimm when…

  • You need docs embedded and synced to code
  • Onboarding new engineers faster is a priority
  • You want docs that don't go stale

Side-by-side comparison

Field
Structurizr
Swimm
Category
Specifications
Documentation
Type
Open Source
Commercial
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $8/mo
Team: $18/user/mo
GitHub Stars
3,800
Health
0 Low activity

Structurizr

Implements the C4 model as a diagrams-as-code DSL — write Structurizr DSL and render multiple architecture views (Context, Container, Component, Code) from a single model. Version-controlled alongside code with full ADR integration. Free OSS CLI plus paid cloud workspace for team collaboration.

Swimm

Creates living internal documentation that stays in sync with code changes. Great for onboarding and reducing knowledge silos.

Shared Connections2 tools both integrate with

Only Structurizr (2)

SwimmEraser

Only Swimm (1)

Structurizr

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See how Structurizr and Swimm fit into the bigger picture — 207 tools, 452 relationships, all mapped.

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