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.send("Hello!"));
app.listen(3000);

Deno Deploy (Free)

Free tier: 1M requests/month, 100K KV reads, custom domains.

With 100K+ GitHub stars. JavaScript runtime, reimagined.

---

Building scrapers? Check out my tools on Apify. Custom solutions: [e-mail]