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Amazon Q Developer is the evolution and replacement of CodeWhisperer. It incorporates all CodeWhisperer features (inline completions, security scans, reference tracking) and adds chat, agentic workflows, code transformation for Java and .NET, AWS account awareness, and availability in the AWS Console, CLI, Slack, and Teams.
The Free Tier is legitimately usable for individual developers. It includes unlimited code suggestions in supported IDEs, chat interactions (with monthly limits), security scans, and a capped number of agent invocations per month. You can sign in with a personal AWS Builder ID — no AWS account or credit card required.
No. Amazon has stated that content processed by Amazon Q Developer Pro is not used to train the underlying models. The Free Tier has an opt-out for data collection. Pro-tier customization lets you train suggestions on your own codebase, but that customization is private to your organization and not shared.
Yes, for supported scenarios. The Java transformation agent handles Java 8 and 11 to 17/21 upgrades, updating Maven/Gradle dependencies, replacing deprecated APIs, and fixing breaking changes. It works best on standard Spring Boot and Java EE applications. Highly customized codebases or apps with unusual build setups may require manual intervention.
It depends on your stack. If your team spends most of its time in AWS — building Lambda functions, managing infrastructure, debugging cloud resources — Amazon Q Developer's AWS-native awareness is a clear win. If you're doing general application development, especially on non-AWS clouds or in frontend/mobile work, Copilot or Cursor currently offer stronger general-purpose completions.
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Last verified March 2026