Node.js Built-in Modules
Node.js has a set of built-in modules which you can use without any further installation.
Here is a list of the built-in modules of Node.js version 6.10.3:
| Module | Description |
|---|---|
| assert | Provides a set of assertion tests |
| buffer | To handle binary data |
| child_process | To run a child process |
| cluster | To split a single Node process into multiple processes |
| crypto | To handle OpenSSL cryptographic functions |
| dgram | Provides implementation of UDP datagram sockets |
| dns | To do DNS lookups and name resolution functions |
| domain | Deprecated. To handle unhandled errors |
| events | To handle events |
| fs | To handle the file system |
| http | To make Node.js act as an HTTP server |
| https | To make Node.js act as an HTTPS server. |
| net | To create servers and clients |
| os | Provides information about the operation system |
| path | To handle file paths |
| punycode | Deprecated. A character encoding scheme |
| querystring | To handle URL query strings |
| readline | To handle readable streams one line at the time |
| stream | To handle streaming data |
| string_decoder | To decode buffer objects into strings |
| timers | To execute a function after a given number of milliseconds |
| tls | To implement TLS and SSL protocols |
| tty | Provides classes used by a text terminal |
| url | To parse URL strings |
| util | To access utility functions |
| v8 | To access information about V8 (the JavaScript engine) |
| vm | To compile JavaScript code in a virtual machine |
| zlib | To compress or decompress files |