typestrong/ts-node

ts-node is a TypeScript execution engine and REPL for Node.js that allows developers to run TypeScript code directly without precompiling it to JavaScript. It's designed for TypeScript developers who want to execute their code in Node.js environments, particularly useful for development, testing, and running scripts. The tool provides features like automatic source map support, TypeScript configuration file parsing, and optional type checking, making it an essential utility for Node.js-based TypeScript projects.