GCP Virtual Network Planner
Design and simulate Google Cloud VPC architectures in your browser. Model subnets, VMs, firewalls, and Cloud NAT, then export Terraform and gcloud.
Model Google Cloud VPC architectures visually, run design-time checks for common production mistakes, and generate infrastructure scaffolding without leaving the browser.
This planner approximates GCP routing, firewall, and NAT behavior to support learning and early design reviews. It is not a replacement for Google Cloud Network Intelligence Center, live policy testing, or production validation.
Component Palette
Properties
Select a component or connection on the canvas to edit it.
Validation and Results
Educational model that approximates GCP behavior. Not a replacement for Network Intelligence Center.
How to use it
Drag a VPC, subnets, VMs, firewall rules, Cloud Router, and Cloud NAT onto the canvas.
Connect components to infer common relationships, then refine details in the properties panel.
Run validation for CIDR, security, NAT, and topology issues, then simulate traffic paths.
What the MVP models
Custom VPC design, subnet attachments, VM placement, firewall intent, and private egress via Cloud NAT.
Educational routing paths for internet, east-west VM traffic, and on-prem ingress via VPN assumptions.
Export-ready architecture JSON and Terraform scaffolding for iteration outside the planner.
Recommended workflow
Start with naming, regions, and CIDR boundaries before placing compute or security controls.
Use the bundled sample architectures to compare healthy private egress designs with intentionally risky public patterns.
Export Terraform only after validation is clean and the traffic simulator matches your expected ingress and egress paths.