These tools often paired with

SwimmvsStructurizr⚠ Stale

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

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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

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

Side-by-side comparison

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

Swimm

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

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.

Shared Connections2 tools both integrate with

Only Swimm (1)

Structurizr

Only Structurizr (2)

SwimmEraser

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