Deno Has a Free Secure Runtime for JavaScript and TypeScript With Built-In Tooling

Deno is a secure runtime for JavaScript and TypeScript. Created by Node.js founder Ryan Dahl, it fixes Node's design mistakes with security-first defaults. What You Get for Free Secure by default — no file/network/env access without permission TypeScript native — no tsconfig, no build step Built-in tooling — formatter, linter, test runner, bundler npm compatibility — import npm packages directly Web standard APIs — fetch, WebSocket, Web Crypto Single executable — compile to standalone binary Deno Deploy — serverless edge hosting Hello World Server Deno . serve (( req ) => { return new Response ( ' Hello World ' ); }); deno run --allow-net server.ts Import npm Packages import express from ' npm:express ' ; const app = express (); app . get ( ' / ' , ( req , res ) => res . send ( ' Hello ' )); app . listen ( 3000 ); Deno vs Node.js Feature Deno Node.js Security Permissions Unrestricted TypeScript Native Via build step Package manager URL imports + npm: npm Tooling Built-in External Need