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Deno

Verified Sep 2026

Secure TypeScript runtime

Node's sibling with permissions, web-standard APIs and TypeScript out of the box.

Ryan Dahl's follow-up to Node: a secure TypeScript-first runtime using web-standard APIs (fetch, URL, import maps) instead of Node quirks. Permissions are explicit, no package.json is needed, and JSR is its registry. Deno 2 reconciled with Node compatibility, and Deno Deploy offers a global edge. The thoughtful alternative when greenfield simplicity matters.

Who it's for

Developers who want a secure, TypeScript-first JavaScript runtime with batteries included.

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