Normalize a URL
JavaScript
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Normalize a URL

Useful when you need to display, store, deduplicate, sort, compare, etc, URLs.

Install

$ npm install normalize-url

Usage

const normalizeUrl = require('normalize-url');

normalizeUrl('sindresorhus.com');
//=> 'http://sindresorhus.com'

normalizeUrl('HTTP://xn--xample-hva.com:80/?b=bar&a=foo');
//=> 'http://êxample.com/?a=foo&b=bar'

API

normalizeUrl(url, [options])

url

Type: string

URL to normalize.

options

Type: Object

normalizeProtocol

Type: boolean
Default: true

Prepend http: to the URL if it's protocol-relative.

normalizeUrl('//sindresorhus.com:80/');
//=> 'http://sindresorhus.com'

normalizeUrl('//sindresorhus.com:80/', {normalizeProtocol: false});
//=> '//sindresorhus.com'
normalizeHttps

Type: boolean
Default: false

Normalize https: URLs to http:.

normalizeUrl('https://sindresorhus.com:80/');
//=> 'https://sindresorhus.com'

normalizeUrl('https://sindresorhus.com:80/', {normalizeHttps: true});
//=> 'http://sindresorhus.com'
normalizeHttp

Type: boolean
Default: false

Normalize http: URLs to https:.

normalizeUrl('https://sindresorhus.com:80/');
//=> 'https://sindresorhus.com'

normalizeUrl('http://sindresorhus.com:80/', {normalizeHttp: true});
//=> 'https://sindresorhus.com'

This option is mutually exclusive with the normalizeHttps option.

stripFragment

Type: boolean
Default: true

Remove the fragment at the end of the URL.

normalizeUrl('sindresorhus.com/about.html#contact');
//=> 'http://sindresorhus.com/about.html'

normalizeUrl('sindresorhus.com/about.html#contact', {stripFragment: false});
//=> 'http://sindresorhus.com/about.html#contact'
stripWWW

Type: boolean
Default: true

Remove www. from the URL.

normalizeUrl('http://www.sindresorhus.com/about.html#contact');
//=> 'http://sindresorhus.com/about.html#contact'

normalizeUrl('http://www.sindresorhus.com/about.html#contact', {stripWWW: false});
//=> 'http://www.sindresorhus.com/about.html#contact'
removeQueryParameters

Type: Array<RegExp|string>
Default: [/^utm_\w+/i]

Remove query parameters that matches any of the provided strings or regexes.

normalizeUrl('www.sindresorhus.com?foo=bar&ref=test_ref', {
	removeQueryParameters: ['ref']
});
//=> 'http://sindresorhus.com/?foo=bar'
removeTrailingSlash

Type: boolean
Default: true

Remove trailing slash.

Note: Trailing slash is always removed if the URL doesn't have a pathname.

normalizeUrl('http://sindresorhus.com/redirect/');
//=> 'http://sindresorhus.com/redirect'

normalizeUrl('http://sindresorhus.com/redirect/', {removeTrailingSlash: false});
//=> 'http://sindresorhus.com/redirect/'

normalizeUrl('http://sindresorhus.com/', {removeTrailingSlash: false});
//=> 'http://sindresorhus.com'
removeDirectoryIndex

Type: boolean Array<RegExp|string>
Default: false

Remove the default directory index file from path that matches any of the provided strings or regexes. When true, the regex /^index\.[a-z]+$/ is used.

normalizeUrl('www.sindresorhus.com/foo/default.php', {
	removeDirectoryIndex: [/^default\.[a-z]+$/]
});
//=> 'http://sindresorhus.com/foo'
sortQueryParameters

Type: boolean
Default: true

Sort the query parameters alphabetically by key.

normalizeUrl('www.sindresorhus.com?b=two&a=one&c=three', {
	sortQueryParameters: false
});
//=> 'http://sindresorhus.com/?b=two&a=one&c=three'

Related

License

MIT © Sindre Sorhus