Bun Has a Free JavaScript Runtime That Replaces Node, npm, and Webpack

Bun is not just a runtime. It is a runtime + package manager + bundler + test runner + transpiler — all in one binary, all faster than the alternatives. Speed Comparison Task Node.js + tools Bun Install deps (cold) npm: 30s bun: 3s Install deps (cached) npm: 8s bun: 0.5s Run TypeScript tsc + node: 2s bun: 0.1s HTTP server (req/s) ~50K ~200K Test runner jest: 15s bun test: 2s Bundle webpack: 20s bun build: 1s Install curl -fsSL https://bun.sh/install | bash Runtime // server.ts — runs directly, no build step const server = Bun . serve ({ port : 3000 , async fetch ( req ) { const url = new URL ( req . url ); if ( url . pathname === " /api/users " ) { return Response . json ([{ id : 1 , name : " Alice " }]); } return new Response ( " Not Found " , { status : 404 }); }, }); console . log ( `Listening on ${ server . url } ` ); bun run server.ts # TypeScript runs directly — no tsc, no ts-node Package Manager # 10-25x faster than npm bun install # Install all deps bun add express # Add packag