`why-is-node-running` is a Node.js utility that helps developers identify why their Node.js process is still running by logging active handles that are keeping the process alive. It's designed for Node.js developers who encounter unexpected process hangs or need to debug lingering resources like timeouts, TCP servers, or other event loop activities. The tool can be used as a dependency, CLI, or via Node's `--import` option, making it flexible for different debugging workflows.