IT and security / Free editable template

AWS VPC network diagram template

An AWS network diagram shows how a cloud application is laid out across zones and subnets. This example places a highly available web app in one region, with an internet gateway and application load balancer, app servers in private subnets, a database with a standby in a second zone, NAT gateways and a VPN back to the office.

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AWS VPC network diagram example showing region, vpc and two availability zones, public, private and data subnets, load balancer, nat, rds and vpn
Everything in this example is editable. Replace the labels, move the shapes and adapt the layout to your work.

How to use this template

  1. Draw the containers first

    Start with the region, the VPC and the availability zones, then add the subnets inside each zone. The nesting shows the blast radius of a failure.

  2. Place the services

    Put the load balancer and NAT gateways in public subnets, app servers in private ones and databases in data subnets.

  3. Show what talks to what

    Draw the traffic paths and write the security group rules beside them. Reviewers check the rules more than the boxes.

Questions about this template

Can I add a third availability zone?

Yes. Copy one zone with its public, private and data subnets, then connect it to the load balancer and update the subnet ranges.

Do I need an account to use it?

No. Open the template and edit it in your browser. Your work saves on this device. An account is optional if you want to sync your workspace.

Can I export the finished diagram?

Yes. Use Export in the editor to save a PNG, SVG or PDF, or download an editable .epicdraw backup.

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