normalize-url
Normalize a URL
Useful when you need to display, store, deduplicate, sort, compare, etc, URLs.
Note: This package does not do URL sanitization. Garbage in, garbage out. If you use this in a server context and accept URLs as user input, it's up to you to protect against invalid URLs, path traversal attacks, etc.
Install
npm install normalize-url
Usage
import normalizeUrl from 'normalize-url';
normalizeUrl('sindresorhus.com');
normalizeUrl('//www.sindresorhus.com:80/../baz?b=bar&a=foo');
API
normalizeUrl(url, options?)
URLs with custom protocols are not normalized and just passed through by default. Supported protocols are: https
, http
, file
, and data
.
Human-friendly URLs with basic auth (for example, user:password@sindresorhus.com
) are not handled because basic auth conflicts with custom protocols. Basic auth URLs are also deprecated.
url
Type: string
URL to normalize, including data URL.
options
Type: object
defaultProtocol
Type: string
Default: 'http'
Values: 'https' | 'http'
normalizeProtocol
Type: boolean
Default: true
Prepend defaultProtocol
to the URL if it's protocol-relative.
normalizeUrl('//sindresorhus.com');
normalizeUrl('//sindresorhus.com', {normalizeProtocol: false});
forceHttp
Type: boolean
Default: false
Normalize HTTPS to HTTP.
normalizeUrl('https://sindresorhus.com');
normalizeUrl('https://sindresorhus.com', {forceHttp: true});
forceHttps
Type: boolean
Default: false
Normalize HTTP to HTTPS.
normalizeUrl('http://sindresorhus.com');
normalizeUrl('http://sindresorhus.com', {forceHttps: true});
This option cannot be used with the forceHttp
option at the same time.
stripAuthentication
Type: boolean
Default: true
Strip the authentication part of the URL.
normalizeUrl('https://user:password@sindresorhus.com');
normalizeUrl('https://user:password@sindresorhus.com', {stripAuthentication: false});
stripHash
Type: boolean
Default: false
Strip the hash part of the URL.
normalizeUrl('sindresorhus.com/about.html#contact');
normalizeUrl('sindresorhus.com/about.html#contact', {stripHash: true});
stripProtocol
Type: boolean
Default: false
Remove the protocol from the URL: http://sindresorhus.com
→ sindresorhus.com
.
It will only remove https://
and http://
protocols.
normalizeUrl('https://sindresorhus.com');
normalizeUrl('https://sindresorhus.com', {stripProtocol: true});
stripTextFragment
Type: boolean
Default: true
Strip the text fragment part of the URL.
Note: The text fragment will always be removed if the stripHash
option is set to true
, as the hash contains the text fragment.
normalizeUrl('http://sindresorhus.com/about.html#:~:text=hello');
normalizeUrl('http://sindresorhus.com/about.html#section:~:text=hello');
normalizeUrl('http://sindresorhus.com/about.html#:~:text=hello', {stripTextFragment: false});
normalizeUrl('http://sindresorhus.com/about.html#section:~:text=hello', {stripTextFragment: false});
stripWWW
Type: boolean
Default: true
Remove www.
from the URL.
normalizeUrl('http://www.sindresorhus.com');
normalizeUrl('http://www.sindresorhus.com', {stripWWW: false});
removeQueryParameters
Type: Array<RegExp | string> | boolean
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']
});
If a boolean is provided, true
will remove all the query parameters.
normalizeUrl('www.sindresorhus.com?foo=bar', {
removeQueryParameters: true
});
false
will not remove any query parameter.
normalizeUrl('www.sindresorhus.com?foo=bar&utm_medium=test&ref=test_ref', {
removeQueryParameters: false
});
keepQueryParameters
Type: Array<RegExp | string>
Default: undefined
Keeps only query parameters that matches any of the provided strings or regexes.
Note: It overrides the removeQueryParameters
option.
normalizeUrl('https://sindresorhus.com?foo=bar&ref=unicorn', {
keepQueryParameters: ['ref']
});
removeTrailingSlash
Type: boolean
Default: true
Remove trailing slash.
Note: Trailing slash is always removed if the URL doesn't have a pathname unless the removeSingleSlash
option is set to false
.
normalizeUrl('http://sindresorhus.com/redirect/');
normalizeUrl('http://sindresorhus.com/redirect/', {removeTrailingSlash: false});
normalizeUrl('http://sindresorhus.com/', {removeTrailingSlash: false});
removeSingleSlash
Type: boolean
Default: true
Remove a sole /
pathname in the output. This option is independent of removeTrailingSlash
.
normalizeUrl('https://sindresorhus.com/');
normalizeUrl('https://sindresorhus.com/', {removeSingleSlash: false});
removeDirectoryIndex
Type: boolean | Array<RegExp | string>
Default: false
Removes the default directory index file from path that matches any of the provided strings or regexes. When true
, the regex /^index\.[a-z]+$/
is used.
normalizeUrl('www.sindresorhus.com/foo/default.php', {
removeDirectoryIndex: [/^default\.[a-z]+$/]
});
removeExplicitPort
Type: boolean
Default: false
Removes an explicit port number from the URL.
Port 443 is always removed from HTTPS URLs and 80 is always removed from HTTP URLs regardless of this option.
normalizeUrl('sindresorhus.com:123', {
removeExplicitPort: true
});
sortQueryParameters
Type: boolean
Default: true
Sorts the query parameters alphabetically by key.
normalizeUrl('www.sindresorhus.com?b=two&a=one&c=three', {
sortQueryParameters: false
});
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