JAVASCRIPT

regex url

(https?://(?:www.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9].[^s]{2,}|www.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9].[^s]{2,}|https?://(?:www.|(?!www))[a-zA-Z0-9]+.[^s]{2,}|www.[a-zA-Z0-9]+.[^s]{2,})

url Regex

^http[s]?://(www.)?(.*)?/?(.)*

regex for url

// All are 'non-capturing' regular expressions.

// General format of a URL in a RegEx:
(?:(?:https?|ftp)://)?(?:www.)?[^/
]+(?:/[^
]*)?

// To enforce the protocol
(?:https?|ftp)://(?:www.)?[^/
]+

// To enforce the protocol and trailing slash
(?:https?|ftp)://(?:www.)?[^/
]+(?:/[^
]*)

// To enforce file extensions like .html or .png:
(?:(?:https?|ftp)://)?(?:www.)?[^/
]+(?:/[^
]*)(?:[a-zA-Z0-9]+.(?:html|png|webp|js))

// To implement in GO (https://go.dev), add an extra backslash ('  ') to every unescaped backslash ('  ')

// For the first format, that is:
(?:(?:https?|ftp)://)?(?:www.)?[^/
]+(?:/[^
]*)?

// You do not need to add the extra backslash to the '
' and '
' because it is handled natively

use regex to get urls from string

/(?:(?:https?|ftp|file)://|www.|ftp.)(?:([-A-Z0-9+&@#/%=~_|$?!:,.]*)|[-A-Z0-9+&@#/%=~_|$?!:,.])*(?:([-A-Z0-9+&@#/%=~_|$?!:,.]*)|[A-Z0-9+&@#/%=~_|$])/igm

regex urls

// It will include the space before as well (if it has one)

/(^| )(https?://)?(www.)?[-a-zA-Z0-9@:%._+~#=]{1,256}.[a-zA-Z0-9()]{1,8}([-a-zA-Z0-9()@:%_+.~#?&//=]*)/gi

url regex

^(ht|f)tp(s?)://[0-9a-zA-Z]([-.w]*[0-9a-zA-Z])*(:(0-9)*)*(/?)([a-zA-Z0-9-.?,'/+&%$#_]*)?$

url regex

/^https?://(?:www.)?[-a-zA-Z0-9@:%._+~#=]{1,256}.[a-zA-Z0-9()]{1,6}(?:[-a-zA-Z0-9()@:%_+.~#?&/=]*)$/