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Diagram guides
In-depth guides on creating architecture, database, and process diagrams - with free AI generators to put the guides into practice.
How to Create an AWS Architecture Diagram
An AWS architecture diagram documents how your cloud infrastructure fits together — which services you use, how they connect, and where data flows. Whether you're presenting to stakeholders, onboarding a new engineer, or reviewing a system for security, a clear AWS diagram saves hours of verbal explanation.
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How to Make a Flowchart: Complete Guide
A flowchart is a visual representation of a process, decision tree, or algorithm using standardized shapes and arrows. Flowcharts are the universal language of process documentation — used in software engineering, operations, compliance, and business analysis to make complex processes immediately understandable.
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Mermaid vs PlantUML: Which Diagram-as-Code Tool Is Right for You?
Mermaid and PlantUML are the two dominant diagram-as-code tools. Both let you write text and get a rendered diagram — no drag-and-drop required. The choice between them comes down to where your diagrams live, what types you need, and how much syntax complexity you're willing to accept.
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System Design Diagrams: What to Draw and How
System design diagrams bridge the gap between an idea and a working system. They help engineers think through scalability, failure modes, and data flows before writing a line of code — and give new team members a map of a system that might have taken years to build.
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Entity Relationship Diagram (ERD) Guide: Design Better Databases
An Entity Relationship Diagram (ERD) maps the structure of a database — the tables, their columns, and the relationships between them. A well-designed ERD is the foundation of a maintainable database: it surfaces many design mistakes (missing foreign keys, many-to-many relationships that need junction tables) before you write any SQL.
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Kubernetes Architecture Diagram: What to Draw and Why
A Kubernetes architecture diagram documents the structure of a cluster — its nodes, namespaces, workloads, networking, and storage. For a cluster running in production, this diagram is essential for incident response, capacity planning, and onboarding engineers who haven't touched Kubernetes before.
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How to Create an Azure Architecture Diagram
Azure architecture diagrams are essential for visualizing cloud solutions on Microsoft Azure. They help teams understand how App Services, SQL Databases, and Virtual Networks interact, ensuring security compliance and operational clarity.
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