Bun Has a Free JavaScript Runtime — 4x Faster Than Node.js With Zero Config

Node.js Was Revolutionary. In 2009. Node.js gave us JavaScript on the server. But 17 years later, we still need separate tools for everything: npm for packages, npx for running, jest for testing, webpack for bundling, dotenv for env files, nodemon for hot reload. What if one tool did all of that? Bun: Everything Node Needs, In One Binary Bun is a JavaScript runtime, bundler, test runner, and package manager — all in a single binary. Written in Zig for maximum performance. The Speed npm install (fresh): 45 seconds bun install (fresh): 4 seconds That is not a typo. Bun installs packages 10x faster than npm. node server.js startup: 150ms bun server.js startup: 30ms 5x faster startup. Your serverless functions will love this. Drop-In Node.js Replacement # Before node index.js npm install express npx create-react-app # After bun index.js bun install express bunx create-react-app Most Node.js code works with zero changes. Just swap node for bun . Built-in Features (No Dependencies) 1. Native