Node.js is increasingly essential for product development in 2025, powering 3.9% of websites, including major platforms like Netflix and PayPal. Its advantages include speed, scalability, and the use of JavaScript for both frontend and backend, streamlining development. Node.js handles high traffic efficiently, supports microservices, and offers extensive libraries via npm. With strong community support and security features, it remains a preferred choice for modern applications, ensuring adaptability in a competitive tech landscape.