Bun Has a Free API: The All-in-One JavaScript Runtime That Replaces Node, npm, and Webpack

Bun is a JavaScript/TypeScript runtime that bundles a package manager, bundler, test runner, and HTTP server into one fast executable — replacing Node.js, npm, webpack, and jest. Why Bun Matters Node.js ecosystem requires: Node.js + npm + webpack/vite + jest + ts-node. Bun replaces ALL of them with one tool that's 3-4x faster. What you get for free: JavaScript/TypeScript runtime (Node.js compatible) Package manager (3-25x faster than npm) Bundler (replaces webpack/esbuild) Test runner (replaces jest) Native TypeScript support (no ts-node) Built-in SQLite Built-in S3 client Web API compatibility (fetch, WebSocket, etc.) Quick Start curl -fsSL https://bun.sh/install | bash bun init # Create project bun install # Install deps (3-25x faster than npm) bun run index.ts # Run TypeScript directly bun test # Run tests bun build ./src/index.ts --outdir ./dist # Bundle HTTP Server Bun . serve ({ port : 3000 , fetch ( req ) { const url = new URL ( req . url ); if ( url . pathname === " /api/hello