AWS Cloud9
- What it is
- Cloud-based integrated development environment (IDE) accessed through a browser.
- Code editor, terminal, and debugger, with preinstalled SDKs and the AWS CLI.
- Features
- Real-time collaborative editing and pair programming with shared terminals.
- Serverless development support — build, test, and debug AWS Lambda functions locally in the environment.
- Runs on an EC2 instance you own (billed as EC2, auto-hibernates when idle) or on your own server via SSH.
- Not to be confused with
- AWS CloudShell — a terminal only, free, ephemeral.
- Note
- AWS has since directed new users toward local IDEs with the AWS Toolkit and Amazon Q Developer, but Cloud9 remains in CLF-C02 scope.