Deno 2 Is a Free Modern JavaScript and TypeScript Runtime

Deno is a free, modern runtime for JavaScript and TypeScript created by Ryan Dahl, the original creator of Node.js. What Is Deno? Deno is a secure runtime with native TypeScript support, built-in tools, and a permissions-based security model. Key features: Native TypeScript (no tsconfig needed) Secure by default (explicit permissions) Built-in formatter, linter, test runner Full npm compatibility Web-standard APIs (fetch, WebSocket) Deno Deploy (free edge hosting) Quick Start curl -fsSL https://deno.land/install.sh | sh deno run --allow-net server.ts HTTP Server in 5 Lines Deno . serve ({ port : 8000 }, ( req : Request ) => { return Response . json ({ message : " Hello from Deno! " }); }); Built-in Everything deno fmt # Format code deno lint # Lint code deno test # Run tests deno check # Type check deno compile # Build binary No prettier, eslint, jest, or tsc needed. npm Compatibility import express from " npm:express " ; const app = express (); app . get ( " / " , ( req , res ) => res