ts-node

TypeScript execution environment and REPL for Node.js with source map support. Current stable version is 10.9.2. Follows semver with frequent minor/patch releases. Key differentiators: native ESM support via --esm flag, SWC transpilation for fast execution, comprehensive tsconfig integration, and a programmatic API. Supports Node.js ESM loader hooks and works with tools like Mocha and NYC. Community-maintained under TypeStrong organization.