AWS Cloud9 is no longer available to new customers. Existing customers of AWS Cloud9 can continue to use the service as normal. [Learn more](https://aws.amazon.com/blogs/devops/how-to-migrate-from-aws-cloud9-to-aws-ide-toolkits-or-aws-cloudshell/)

# Working with AWS CDK in the AWS Cloud9 IDE
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The **AWS CDK service** enables you to work with [AWS Cloud Development Kit (AWS CDK)](https://aws.amazon.com/cdk/) applications, or *apps*. You can find detailed information about the AWS CDK in the [AWS Cloud Development Kit (AWS CDK) Developer Guide](https://docs.aws.amazon.com/cdk/latest/guide/). 

AWS CDK apps are composed of building blocks known as *[constructs](https://docs.aws.amazon.com/cdk/latest/guide/constructs.html)*. These building blocks include definitions for your CloudFormation stacks and the AWS resources within them. Using the **AWS CDK Explorer**, you can see the [stacks](https://docs.aws.amazon.com/cdk/latest/guide/stacks.html) and [resources](https://docs.aws.amazon.com/cdk/latest/guide/resources.html) that are defined in AWS CDK *tree view*. You can access this view in the Developer Tools pane within the AWS Cloud9 editor.

This section provides information about how to access and use **AWS CDK ** in the AWS Cloud9 editor.