Node.js is asynchronous, event-driven, non-blocking, and single-threaded. It makes Node a perfect candidate for developing the following types of applications:
- Realtime applications like chat and services delivering live updates.
- Streaming applications that deliver video or other multimedia content to a large audience.
- I/O intensive applications, like collaborative platforms.
- Web backends that follow microservices architecture.
However, Node.js’ unique qualities make it less than ideal for some other types of applications: those that carry out CPU-intensive tasks like complex mathematical computations will be restricted by Node’s single-threaded execution.