Bun Has a Free JavaScript Runtime That's 3x Faster Than Node.js

Node.js uses V8. Deno uses V8. Bun uses JavaScriptCore (Safari's engine) — and it's significantly faster for everything: startup, HTTP serving, file I/O, package installation, and testing. Here's why Bun is production-ready in 2026. What Bun Gives You for Free JavaScript runtime — 3x faster startup than Node.js Package manager — bun install is 25x faster than npm Bundler — built-in, faster than esbuild for most cases Test runner — bun test with Jest-compatible API TypeScript/JSX native — no transpilation step needed Node.js compatible — most npm packages work out of the box Quick Start curl -fsSL https://bun.sh/install | bash bun init bun run index.ts # TypeScript works natively HTTP Server (Built-in, Blazing Fast) // server.ts — no dependencies needed Bun . serve ({ port : 3000 , fetch ( req ) { const url = new URL ( req . url ); if ( url . pathname === ' /api/users ' ) { return Response . json ([ { id : 1 , name : ' Alice ' }, { id : 2 , name : ' Bob ' } ]); } return new Response ( '