diagrams
Diagram as Code for infrastructure visualization.
Pricing
Free tier
Flat rate
Adoption
→StableLicense
Open Source
Data freshness
Verified · Jul 12, 2026Overview
What is diagrams?
Diagrams is an open-source Python library that allows you to create infrastructure diagrams from code. It simplifies the process of visualizing complex systems by using simple and intuitive syntax, making it easier to maintain and update diagrams alongside your infrastructure changes.
Key differentiator
“Diagrams stands out as an open-source Python library that simplifies the creation of infrastructure diagrams from code, offering a unique blend of automation and maintainability.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Diagram appearance is constrained by the library's default styles and limited API for custom styling
Rendering complex infrastructure can lead to slow performance or crashes due to high memory usage
Fit analysis
Who is it for?
✓ Best for
DevOps teams needing to visualize complex cloud infrastructures quickly and accurately.
Developers who want to maintain up-to-date architecture documentation alongside their codebase.
Teams that require automated diagram generation from infrastructure-as-code definitions.
✕ Not a fit for
Projects requiring real-time collaboration on diagrams (diagrams is a library, not a collaborative tool).
Users looking for a graphical user interface to create diagrams without coding.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Next step
Get Started with diagrams
Step-by-step setup guide with code examples and common gotchas.