Diagram types
Templates
All 37 starting points — AWS and cloud architecture, CI/CD, incident response, sequence diagrams, ERDs, delivery plans and charts.
Using a template
Press ⌘/Ctrl + K, or use the grid button beside New, to browse. Picking one creates a new diagram in the current project — it never overwrites what you are working on.
These are complete diagrams rather than empty scaffolds. The AWS template has real services in real subnets with labelled traffic between them, so the fastest route to your own architecture is usually to open the nearest template and rename things.
Cloud & architecture
7 starting points in this group.
AWS three-tier web app
CloudFront, ALB, ECS, RDS and S3 across public, private and data subnets.
Microservices landscape
Gateway, services, an event bus and per-service datastores.
Kubernetes cluster
Ingress, namespaced workloads, storage and observability.
Serverless event-driven
Managed API, pub/sub, workers and a warehouse.
VPC network topology
Two availability zones with public, private and isolated subnets.
AI assistant (RAG)
Retrieval, re-ranking, a model and the evaluation loop around them.
Multi-region failover
Active region, warm standby, replication and the runbook.
Flowcharts & process
7 starting points in this group.
Blank canvas
Three shapes to drag apart and build from.
CI/CD pipeline
Commit through gates, staging, canary and production.
Authentication flow
Session check, credentials, lockout, MFA and token issue.
Data pipeline
Ingest, medallion layers and serving.
Swimlane process
Who does what, in lanes — order fulfilment end to end.
Incident response
Alert to stand-down, with severity, comms and the review.
Git branching
Trunk, feature branches, a hotfix and two tagged releases.
Interaction & behaviour
5 starting points in this group.
Sequence — API request
Client to gateway to service, with a cache lookup.
Sequence — OAuth 2.0 + PKCE
Authorization code flow for public clients.
Sequence — distributed saga
Multi-service transaction with compensating actions.
State machine — order lifecycle
States, events and terminal transitions.
User journey
Onboarding steps scored for how well they go.
Data & types
4 starting points in this group.
ERD — SaaS schema
Accounts, users, subscriptions, plans and invoices.
Class diagram — domain model
Entities, value objects and a repository port.
C4 — container diagram
People, containers and external systems.
Packet layout
A TCP header, field by field, to fork for your own format.
Planning & delivery
7 starting points in this group.
Delivery plan
Phases, dependencies and milestones.
Kanban board
Work in progress by column, with assignees.
Timeline
Architecture history by year.
Mindmap
Decompose a platform into branches.
Requirements
Statements, what satisfies them and what verifies them.
Org chart
Reporting lines, team sizes and the guilds across them.
Website sitemap
Top-level sections and the pages beneath them.
Charts & analysis
7 starting points in this group.
Priority quadrant
Effort versus impact for a backlog.
Pie chart
Proportional breakdown of a total.
Sankey flow
Where a quantity goes — a signup funnel with its drop-off.
XY chart
Bars and a trend line over a shared axis.
Radar comparison
Three options scored against the same five criteria.
Treemap
Nested proportions — where the cloud bill actually goes.
Fishbone
Causes of an incident, grouped by theme.
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