The url module in Node.js is used to parse and manipulate URLs. It comes built-in, so you don’t need to install anything.

🔧 How to Use the URL Module

✅ Importing the module

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const url = require('url');

📦 Example: Parsing a URL

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const url = require('url');const myURL = 'https://example.com:8080/path/name?query=123#section';const parsed = url.parse(myURL, true); // `true` parses query string into an objectconsole.log(parsed.hostname);   // example.comconsole.log(parsed.pathname);   // /path/nameconsole.log(parsed.port);       // 8080console.log(parsed.query);      // { query: '123' }console.log(parsed.hash);       // #section

🌐 Newer Way (WHATWG URL API)

Node.js also supports the newer URL class (preferred for newer code):

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const { URL } = require('url');const myURL = new URL('https://example.com:8080/path/name?query=123#section');console.log(myURL.hostname);   // example.comconsole.log(myURL.pathname);   // /path/nameconsole.log(myURL.port);       // 8080console.log(myURL.searchParams.get('query')); // 123console.log(myURL.hash);       // #section

🔄 Modifying URLs

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myURL.pathname = '/newpath';myURL.searchParams.set('page', '2');console.log(myURL.href); // https://example.com:8080/newpath?query=123&page=2#section

🧠 Use Cases

• Parse incoming request URLs in a web server.

• Modify and build query strings.

• Redirect URLs dynamically.

• Extract data from URL parameters.