NodeJS

Node.js: The open-source, V8-powered JavaScript runtime that executes code server-side, enabling fast, scalable network application development.

Node.js is the open-source, cross-platform JavaScript runtime environment, built on Google's high-performance V8 engine: this foundation executes code server-side, unifying the development stack. Its core strength is the single-threaded, event-driven architecture, which employs non-blocking I/O to handle thousands of concurrent connections efficiently . This design minimizes overhead and eliminates dead-locking issues, making it ideal for I/O-heavy applications like real-time chat, streaming data, and high-throughput APIs . Developers leverage the massive npm ecosystem (over 2.5 million packages) to rapidly build everything from microservices to command-line tools .

https://nodejs.org