Deno
In plain terms
A secure, modern JavaScript/TypeScript runtime.
Going deeper
Deno, from Node's creator, runs JS/TS with built-in TypeScript, secure-by-default permissions, and standard web APIs. It addresses Node's early design regrets.
Under the hood
No node_modules (URL imports), explicit permission flags, and built-in tooling; smaller ecosystem than Node.
Examples
TypeScript apps, secure scripts, edge functions, modern backends.
Think of it like...
Like a redesigned Node with the seatbelts and modern dashboard built in.