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License:MIT
Open source Self-hostable

Deno

About

A modern JavaScript and TypeScript runtime from the creator of Node.js — secure by default, with built-in TypeScript, no node_modules, and web-standard APIs. Also powers Deno Deploy edge functions.

Pricing

Free

Deno is a JavaScript and TypeScript runtime that brings modern defaults: secure-by-default permissions, built-in TS compilation, URL-based module imports and first-class Web APIs.

Key Features

  • Secure by default: no network/file access unless granted.
  • TypeScript natively — no build step.
  • Web-standard APIs: fetch, WebSocket, Web Storage.
  • URL imports instead of a package manager.
  • Built-in tooling: deno fmt, deno lint, deno test.
  • Deno Deploy for global edge hosting.

Pricing

Deno is free and open source under the MIT license. Deno Deploy has a free tier with 1M requests/month.

Getting Started

curl -fsSL https://deno.land/install.sh | sh
deno run --allow-net https://example.com/server.ts

Or scaffold a full-stack app with deno init — the entry point runs with zero config.