Infrastructure

Deno

Secure-by-default JavaScript and TypeScript runtime from Node's original creator, with built-in TypeScript, fmt, lint, and test. The Deno team joined Cloudflare in October 2026: the runtime gets one more year of bug-fix and security releases, and Deno Deploy shuts down six months after the announcement.

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Deno is Ryan Dahl's redo of Node with the lessons of a decade applied. It runs TypeScript natively, sandboxes file and network access by default, and ships a full toolchain (fmt, lint, test, bench) in one binary. v2 added full npm and Node compatibility, which removed the biggest historical objection. The Deno team joined Cloudflare on October 9, 2026: the runtime gets one more year of monthly bug-fix and security releases, JSR moves to Cloudflare infrastructure, and Deno Deploy shuts down six months after the announcement. Weigh that support window before picking it for a greenfield TypeScript project, even if you value secure-by-default and a unified toolchain.

runtime javascript typescript secure edge

Deno at a glance

Last verified October 17, 2026

Pricing: Deno runtime - free and open source (MIT)
Deno Deploy Free - $0/mo: 1M requests, 20GiB egress, 10 hr active CPU
Deno Deploy Pro - $20/mo: 5M requests (then $2/M), 200GiB egress, sandboxes, email support
Deno Deploy Builder - $200/mo: 25M requests, 2,000GiB egress, for Subhosting users
Deno Deploy Enterprise - custom pricing
Deno Deploy shuts down six months after the 2026-10-09 Cloudflare announcement
Install: curl -fsSL https://deno.land/install.sh | sh
npm install -g deno
brew install deno
Models: Not an AI model runner: a JavaScript, TypeScript, and WebAssembly runtime on V8 with npm and Node.js compatibility (Node.js 26 compatibility as of Deno 2.9) and the JSR registry.
Recent changes: Oct 9Deno team joins Cloudflare. The runtime gets one more year of monthly bug-fix and security releases, Deno Deploy shuts down after six months, and JSR moves to Cloudflare infrastructure.
Sep 17v2.9.7 makes deno audit honor configured CA stores.
Aug 6v2.9.5 adds an --unscoped flag to deno add for aliasing packages by their unscoped name.

Sources: Deno is joining Cloudflare, Deno installation docs, Deno Deploy pricing, Deno blog, denoland/deno releases, denoland/deno LICENSE

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