Amazon Q Developer is AWS's developer-focused branch of its broader Amazon Q platform, built for generating, testing, debugging, refactoring, and planning multi-step coding tasks. It works inside VS Code, JetBrains tools, Visual Studio, AWS Cloud9, the command line, and even chat tools like Slack and Teams, reflecting how spread out AWS wants it to be across a developer's actual workflow.
Its agentic coding mode can carry out contextual actions autonomously from natural-language prompts, including creating pull requests and running shell commands, rather than only suggesting code for a human to copy. Deep AWS expertise shows up in its troubleshooting support for services like S3, EC2, Lambda, and ECS, plus dedicated code modernization features for upgrading legacy Java and .NET applications.
As the successor to CodeWhisperer, it inherits AWS's existing developer relationships and is positioned less as a general competitor to Copilot and more as the AI assistant that makes the most sense if a team is already deep in AWS infrastructure.