| # normalize-url [](https://codecov.io/gh/sindresorhus/normalize-url) |
| |
| > [Normalize](https://en.wikipedia.org/wiki/URL_normalization) a URL |
| |
| Useful when you need to display, store, deduplicate, sort, compare, etc, URLs. |
| |
| ## Install |
| |
| ``` |
| $ npm install normalize-url |
| ``` |
| |
| *If you need to use this in the browser, use version 4: `npm i normalize-url@4`* |
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| ## Usage |
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| ```js |
| const normalizeUrl = require('normalize-url'); |
| |
| normalizeUrl('sindresorhus.com'); |
| //=> 'http://sindresorhus.com' |
| |
| normalizeUrl('//www.sindresorhus.com:80/../baz?b=bar&a=foo'); |
| //=> 'http://sindresorhus.com/baz?a=foo&b=bar' |
| ``` |
| |
| ## API |
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| ### normalizeUrl(url, options?) |
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| #### url |
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| Type: `string` |
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| URL to normalize, including [data URL](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs). |
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| #### options |
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| Type: `object` |
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| ##### defaultProtocol |
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| Type: `string`\ |
| Default: `http:` |
| |
| ##### normalizeProtocol |
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| Type: `boolean`\ |
| Default: `true` |
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| Prepend `defaultProtocol` to the URL if it's protocol-relative. |
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| ```js |
| normalizeUrl('//sindresorhus.com:80/'); |
| //=> 'http://sindresorhus.com' |
| |
| normalizeUrl('//sindresorhus.com:80/', {normalizeProtocol: false}); |
| //=> '//sindresorhus.com' |
| ``` |
| |
| ##### forceHttp |
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| Type: `boolean`\ |
| Default: `false` |
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| Normalize `https:` to `http:`. |
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| ```js |
| normalizeUrl('https://sindresorhus.com:80/'); |
| //=> 'https://sindresorhus.com' |
| |
| normalizeUrl('https://sindresorhus.com:80/', {forceHttp: true}); |
| //=> 'http://sindresorhus.com' |
| ``` |
| |
| ##### forceHttps |
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| Type: `boolean`\ |
| Default: `false` |
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| Normalize `http:` to `https:`. |
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| ```js |
| normalizeUrl('https://sindresorhus.com:80/'); |
| //=> 'https://sindresorhus.com' |
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| normalizeUrl('http://sindresorhus.com:80/', {forceHttps: true}); |
| //=> 'https://sindresorhus.com' |
| ``` |
| |
| This option can't be used with the `forceHttp` option at the same time. |
| |
| ##### stripAuthentication |
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| Type: `boolean`\ |
| Default: `true` |
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| Strip the [authentication](https://en.wikipedia.org/wiki/Basic_access_authentication) part of the URL. |
| |
| ```js |
| normalizeUrl('user:password@sindresorhus.com'); |
| //=> 'https://sindresorhus.com' |
| |
| normalizeUrl('user:password@sindresorhus.com', {stripAuthentication: false}); |
| //=> 'https://user:password@sindresorhus.com' |
| ``` |
| |
| ##### stripHash |
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| Type: `boolean`\ |
| Default: `false` |
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| Strip the hash part of the URL. |
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| ```js |
| normalizeUrl('sindresorhus.com/about.html#contact'); |
| //=> 'http://sindresorhus.com/about.html#contact' |
| |
| normalizeUrl('sindresorhus.com/about.html#contact', {stripHash: true}); |
| //=> 'http://sindresorhus.com/about.html' |
| ``` |
| |
| ##### stripProtocol |
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| Type: `boolean`\ |
| Default: `false` |
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| Remove HTTP(S) protocol from the URL: `http://sindresorhus.com` → `sindresorhus.com`. |
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| ```js |
| normalizeUrl('https://sindresorhus.com'); |
| //=> 'https://sindresorhus.com' |
| |
| normalizeUrl('https://sindresorhus.com', {stripProtocol: true}); |
| //=> 'sindresorhus.com' |
| ``` |
| |
| ##### stripTextFragment |
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| Type: `boolean`\ |
| Default: `true` |
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| Strip the [text fragment](https://web.dev/text-fragments/) part of the URL. |
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| **Note:** The text fragment will always be removed if the `stripHash` option is set to `true`, as the hash contains the text fragment. |
| |
| ```js |
| normalizeUrl('http://sindresorhus.com/about.html#:~:text=hello'); |
| //=> 'http://sindresorhus.com/about.html#' |
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| normalizeUrl('http://sindresorhus.com/about.html#section:~:text=hello'); |
| //=> 'http://sindresorhus.com/about.html#section' |
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| normalizeUrl('http://sindresorhus.com/about.html#:~:text=hello', {stripTextFragment: false}); |
| //=> 'http://sindresorhus.com/about.html#:~:text=hello' |
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| normalizeUrl('http://sindresorhus.com/about.html#section:~:text=hello', {stripTextFragment: false}); |
| //=> 'http://sindresorhus.com/about.html#section:~:text=hello' |
| ``` |
| |
| ##### stripWWW |
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| Type: `boolean`\ |
| Default: `true` |
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| Remove `www.` from the URL. |
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| ```js |
| normalizeUrl('http://www.sindresorhus.com'); |
| //=> 'http://sindresorhus.com' |
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| normalizeUrl('http://www.sindresorhus.com', {stripWWW: false}); |
| //=> 'http://www.sindresorhus.com' |
| ``` |
| |
| ##### removeQueryParameters |
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| Type: `Array<RegExp | string> | boolean`\ |
| Default: `[/^utm_\w+/i]` |
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| Remove query parameters that matches any of the provided strings or regexes. |
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| ```js |
| normalizeUrl('www.sindresorhus.com?foo=bar&ref=test_ref', { |
| removeQueryParameters: ['ref'] |
| }); |
| //=> 'http://sindresorhus.com/?foo=bar' |
| ``` |
| |
| If a boolean is provided, `true` will remove all the query parameters. |
| |
| ```js |
| normalizeUrl('www.sindresorhus.com?foo=bar', { |
| removeQueryParameters: true |
| }); |
| //=> 'http://sindresorhus.com' |
| ``` |
| |
| `false` will not remove any query parameter. |
| |
| ```js |
| normalizeUrl('www.sindresorhus.com?foo=bar&utm_medium=test&ref=test_ref', { |
| removeQueryParameters: false |
| }); |
| //=> 'http://www.sindresorhus.com/?foo=bar&ref=test_ref&utm_medium=test' |
| ``` |
| |
| ##### removeTrailingSlash |
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| Type: `boolean`\ |
| Default: `true` |
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| Remove trailing slash. |
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| **Note:** Trailing slash is always removed if the URL doesn't have a pathname unless the `removeSingleSlash` option is set to `false`. |
| |
| ```js |
| normalizeUrl('http://sindresorhus.com/redirect/'); |
| //=> 'http://sindresorhus.com/redirect' |
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| normalizeUrl('http://sindresorhus.com/redirect/', {removeTrailingSlash: false}); |
| //=> 'http://sindresorhus.com/redirect/' |
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| normalizeUrl('http://sindresorhus.com/', {removeTrailingSlash: false}); |
| //=> 'http://sindresorhus.com' |
| ``` |
| |
| ##### removeSingleSlash |
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| Type: `boolean`\ |
| Default: `true` |
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| Remove a sole `/` pathname in the output. This option is independant of `removeTrailingSlash`. |
| |
| ```js |
| normalizeUrl('https://sindresorhus.com/'); |
| //=> 'https://sindresorhus.com' |
| |
| normalizeUrl('https://sindresorhus.com/', {removeSingleSlash: false}); |
| //=> 'https://sindresorhus.com/' |
| ``` |
| |
| |
| ##### removeDirectoryIndex |
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| Type: `boolean | Array<RegExp | string>`\ |
| Default: `false` |
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| Removes the default directory index file from path that matches any of the provided strings or regexes. When `true`, the regex `/^index\.[a-z]+$/` is used. |
| |
| ```js |
| normalizeUrl('www.sindresorhus.com/foo/default.php', { |
| removeDirectoryIndex: [/^default\.[a-z]+$/] |
| }); |
| //=> 'http://sindresorhus.com/foo' |
| ``` |
| |
| ##### sortQueryParameters |
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| Type: `boolean`\ |
| Default: `true` |
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| Sorts the query parameters alphabetically by key. |
| |
| ```js |
| normalizeUrl('www.sindresorhus.com?b=two&a=one&c=three', { |
| sortQueryParameters: false |
| }); |
| //=> 'http://sindresorhus.com/?b=two&a=one&c=three' |
| ``` |
| |
| ## Related |
| |
| - [compare-urls](https://github.com/sindresorhus/compare-urls) - Compare URLs by first normalizing them |
| |
| --- |
| |
| <div align="center"> |
| <b> |
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| </b> |
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| <sub> |
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