ts-node enables you to directly execute TypeScript files in Node.js without pre-compiling to JavaScript. It leverages TypeScript's compiler API to parse and transpile your code on-the-fly, making development faster and more efficient. Ideal for rapid prototyping, scripting, and running TypeScript-based command-line tools. Streamlines the "compile, then run" workflow for Node.js TypeScript projects, reducing build steps and enhancing developer productivity.