esrun

esrun is a lightweight CLI tool that executes TypeScript and modern JavaScript files directly using esbuild for near-instant compilation, without requiring a bundler. It supports custom tsconfig, top-level await, and watch mode for re-executing on file changes. It handles both CJS and ESM dependencies seamlessly. However, the package is deprecated as of version 3.2.30 (current stable). Maintainers recommend migrating to Bun or, for Node.js compatibility, tsx. Last useful release: 3.2.30, minimal maintenance since. Designed for quick demonstrations and test execution, it differentiates itself by zero-config setup and esbuild's speed, but is now superseded.