cdk

On a 120-stack AWS Organization, CloudFormation StackSets for platform baseline plus CDK for app teams cut org-wide guardrail rollout from 6 weeks to 2 — with Application Composer for spikes and Blocks for greenfield TypeScript only at preview.

AWS Blocks (public preview, June 2026): 18+ open-source TypeScript building blocks that run locally without an AWS account and deploy with zero code changes.

Terraform is the multi-cloud default. CDK ships AWS features the day they GA. Language support, state management, multi-cloud flexibility, and the trade-off that determines which IaC tool fits your team — plus when running both is the right answer.