RegExLib.com - The first Regular Expression Library on the Web!

Title	Test Details Pattern Title
Expression	^[a-zA-Z0-9\-\.]+\.(com|org|net|mil|edu|COM|ORG|NET|MIL|EDU)$
Description	Domain names: This regular expression tests the validity of a domain or hostname. It will match any valid domain name that does not contain characters which are invalid in URLs, and which ends in .com, .org, .net, .mil, or .edu. You can add additional valid TLDs by appending the | (pipe) character and the desired TLD to the list in the parens.
Matches	3SquareBand.com | asp.net | army.mil
Non-Matches	$SquareBand.com | asp/dot.net | army.military
Author	Rating: Not yet rated. G. Andrew Duthie

Title	Test Details Pattern Title
Expression	((mailto\:|(news|(ht|f)tp(s?))\://){1}\S+)
Description	Regular Expression matches any internet URLs. Used with the replace method it comes in very handy.
Matches	http://www.aspemporium.com | mailto:dominionx@hotmail.com | ftp://ftp.test.com
Non-Matches	www.aspemporium.com | dominionx@hotmail.com | bloggs
Author	Rating: Justin Saunders

Title	Test Details Pattern Title
Expression	Last.*?(\d+.?\d*)
Description	Plucks the last quote of a Stock from the MSN MoneyCentral WebQuote page for any given stock symbol. The URL of the web page where this RegEx should be applied is: http://localhost/asp/webquote.htm?ipage=qd&Symbol=,give the stock symbol here> You must also use the singleline option.
Matches	<TR><TD ALIGN=RIGHT> </TD><TD>Last</TD><TD ALIGN=RIGHT NOW
Non-Matches	[AADDSS]
Author	Rating: Prasad DV

Title	Test Details Pattern Title
Expression	^http\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(/\S*)?$
Description	Verifies URLs. Checks for the leading protocol, a good looking domain (two or three letter TLD; no invalid characters in domain) and a somwhat reasonable file path.
Matches	http://psychopop.org | http://www.edsroom.com/newUser.asp | http://unpleasant.jarrin.net/markov/inde
Non-Matches	ftp://psychopop.org | http://www.edsroom/ | http://un/pleasant.jarrin.net/markov/index.asp
Author	Rating: Klaxon Mindjammer

Title	Test Details Pattern Title
Expression	(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?
Description	*CORRECTED: Again thanks for all the comments below. If you want to include internal domain as well change the partial code (\.[\w-_]+)+ to (\.[\w-_]+)? See the comments below* This is the regular expression I use to add links in my email program. It also ignores those suppose-to-be commas/periods/colons at the end of the URL, like this sentence "check out http://www.yahoo.com/." (the period will be ignored) Note that it requires some modification to match ones that dont start with http.
Matches	http://regxlib.com/Default.aspx | http://electronics.cnet.com/electronics/0-6342366-8-8994967-1.html
Non-Matches	www.yahoo.com
Author	Rating: M H

Title	Test Details Pattern Title
Expression	^(?=[^&])(?:(?<scheme>[^:/?#]+):)?(?://(?<authority>[^/?#]*))?(?<path>[^?#]*)(?:\?(?<query>[^#]*))?(?:#(?<fragment>.*))?
Description	Use it for breaking-down a URI (URL, URN) reference into its main components: Scheme, Authority, Path, Query and Fragment. This is not a simple match regular expression. so it not works to verify a URI. It returns 1 matching group for each URI component. For example, for the following URI: http://regexlib.com/REDetails.aspx?regexp_id=x#Details returns: scheme=&quot;http&quot;, authority=&quot;regexlib.com&quot;, path=&quot;/REDetails.aspx&quot;, query=&quot;regexp_id=x&quot; and fragment=&quot;Details&quot;. This is a W3C raccomandation (RFC 2396).
Matches	http://regexlib.com/REDetails.aspx?regexp_id=x#Details
Non-Matches	&
Author	Rating: Not yet rated. Frederico Knabben

Title	Test Details Pattern Title
Expression	([A-Z]:\\[^/:\*\?<>\|]+\.\w{2,6})|(\\{2}[^/:\*\?<>\|]+\.\w{2,6})
Description	This regular expression pattern can be used to check the validity of paths for file upload controls. The uploaded file can be either stored locally or accessible through UNC. It cannot contain illegal characters for the windows OS - that may be supported e.g. on Mac OS – and cannot be a URL (Yes, as weird as it may seem, some users enter URLs in the file upload box, even though there is a browse button...)
Matches	C:\temp\this allows spaces\web.config | \\Andromeda\share\file name.123
Non-Matches	tz:\temp\ fi*le?na:m<e>.doc | \\Andromeda\share\filename.a
Author	Rating: Alban Schmid

Title	Test Details Pattern Title
Expression	^(http|https|ftp)\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&%\$#\=~])*$
Description	Modified URL RegExp that requires (http, https, ftp)://, A nice domain, and a decent file/folder string. Allows : after domain name, and these characters in the file/folder sring (letter, numbers, - . _ ? , ' / \ + & % $ # = ~). Blocks all other special characters-good for protecting against user input!
Matches	http://www.blah.com/~joe | ftp://ftp.blah.co.uk:2828/blah%20blah.gif | https://blah.gov/blah-blah.as
Non-Matches	www.blah.com | http://www.blah"blah.com/I have spaces! | ftp://blah_underscore/[nope]
Author	Rating: Brandon Luhring

Title	Test Details Pattern Title
Expression	^(http|https|ftp)\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&%\$#\=~])*[^\.\,\)\(\s]$
Description	This Regex (can be used e.g. in PHP with eregi) will match any valid URL. Unlike the other exapmles here, it will NOT match a valid URL ending with a dot or bracket. This is important if you use this regex to find and "activate" Links in an Text
Matches	https://www.restrictd.com/~myhome/
Non-Matches	http://www.krumedia.com. | (http://www.krumedia.com) | http://www.krumedia.com,
Author	Rating: Michael Krutwig

Title	Test Details Pattern Title
Expression	(("|')[a-z0-9\/\.\?\=\&]*(\.htm|\.asp|\.php|\.jsp)[a-z0-9\/\.\?\=\&]*("|'))|(href=*?[a-z0-9\/\.\?\=\&"']*)
Description	Will locate an URL in a webpage. It'll search in 2 ways - first it will try to locate a href=, and then go to the end of the link. If there is nu href=, it will search for the end of the file instead (.asp, .htm and so on), and then take the data between the "xxxxxx" or 'xxxxxx'
Matches	href="produktsida.asp?kategori2=218" | href="NuclearTesting.htm"
Non-Matches	U Suck
Author	Rating: Not yet rated. Henric Rosvall

Title	Test Details Pattern Title
Expression	\b(((\S+)?)(@|mailto\:|(news|(ht|f)tp(s?))\://)\S+)\b
Description	Whilst writing a plain-text to HTML function, I ran into the problem of links that users had written with <a> tags (as opposed to just writing the URL) were linking improperly. This regular expression returns many types of URL, and preceding characters, if any. This allows you to handle each type of match appropriately
Matches	href='http://www.deepart.org' | demogorgon@deepart.org | ftp://123.123.123.123
Non-Matches	www.deepart.org | deepart.org | 123.123.123.123
Author	Rating: Demo Gorgon

Title	Test Details Pattern Title
Expression	(mailto\:|(news|(ht|f)tp(s?))\://)(([^[:space:]]+)|([^[:space:]]+)( #([^#]+)#)?)
Description	this is a very little regex for use within a content management software. links within textfields has not to be written in html. the editor of the cms is instructed to use it like this: 1. mention spaces in front and behind the url 2. start url with http://, mailto://, ftp:// ... 3. use optional linktext within #linktext# (separated with single space) 4. if there is no linktext the url/email will show up as linktext 5. avoid url with spaces in filename (use %20 urldecode) replace pattern (space in front): <a href="\\1\\3\\4" target="_blank">\\3\\6</a>
Matches	http://www.domain.com | http://www.domain.com/index%20page.htm #linktext# | mailto://user@domai
Non-Matches	<a href="http://www.domain.com">real html link</a> | http://www.without_space_
Author	Rating: Not yet rated. Martin Schwedes

Title	Test Details Pattern Title
Expression	\.com/(\d+)$
Description	This is a regex I wrote to capture requests to AspAlliance.com with an article id as the only thing after the domain. So http://aspalliance.com/123 would go to article number 123. It maps the URL to the actual aspx file that displays the article based on the ID.
Matches	http://aspalliance.com/123 | www.aspalliance.com/123 | http://aspalliance.com/34
Non-Matches	http://aspalliance.com/article.aspx?id=123 | http://aspalliance.com/ | http://aspalliance.com/articl
Author	Rating: Steven Smith

Title	Test Details Pattern Title
Expression	.*?$(?<!\.aspx)
Description	Matches a string to ensure that it does not end with .aspx; sure, you'd probably use string handling to do something this simple but, in the real world you'd whack a regex which validates a valid url to the front of this. The pattern was created by Wayne King; you can read about it here: http://scottwater.com/blog/posts/10204.aspx
Matches	http://weblogs.asp.net/DNeimke/blah.gif
Non-Matches	http://weblogs.asp.net/DNeimke/Default.aspx
Author	Rating: Darren Neimke

Title	Test Details Pattern Title
Expression	(?<http>(http:[/][/]|www.)([a-z]|[A-Z]|[0-9]|[/.]|[~])*)
Description	This is HTTP Url extractor
Matches	http://www.abc.com | www.mpgrewal.tk
Non-Matches	noida-India | crazy123
Author	Rating: Manpreet Grewal

Title	Test Details Pattern Title
Expression	wsrp_rewrite\?(?<wsrp_uri>[\w%:&\\/;.]*)/wsrp_rewrite
Description	Matches a string used to rewrite urls under the WSRP specification. It captures the URL-Encoded string that represents a url. Url validation is not provided.
Matches	wsrp_rewrite?http%3a%2f%2fregexplib.com%3fid%3d1%26message%3dtest/wsrp_rewrite | wsrp_rewrite?http:/
Non-Matches	http%3a%2f%2fregexplib.com%3fid%3d1%26message%3dtest | http://www.regexplib.com/Add.aspx
Author	Rating: Not yet rated. Andres Garcia

Title	Test Details Pattern Title
Expression	^(http|https|ftp)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)?((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.[a-zA-Z]{2,4})(\:[0-9]+)?(/[^/][a-zA-Z0-9\.\,\?\'\\/\+&%\$#\=~_\-@]*)*$
Description	None of the other URL regex's seemed to work right for me, so i threw this together. works well with PHP's ereg().
Matches	http://www.sysrage.net | https://64.81.85.161/site/file.php?cow=moo's | ftp://user:pass@host.com:123
Non-Matches	sysrage.net
Author	Rating: Not yet rated. Brian Bothwell

Title	Test Details Pattern Title
Expression	^(http|https|ftp)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*$
Description	Ok here's an updated URL regex for you folks. It allows localhost and all TLDs. Feel free to add each country code individually if you want a tighter match.
Matches	http://site.com/dir/file.php?var=moo | https://localhost | ftp://user:pass@site.com:21/file/dir
Non-Matches	site.com | http://site.com/dir//
Author	Rating: Brian Bothwell

Title	Test Details Pattern Title
Expression	^http://([a-zA-Z0-9_\-]+)([\.][a-zA-Z0-9_\-]+)+([/][a-zA-Z0-9\~\(\)_\-]*)+([\.][a-zA-Z0-9\(\)_\-]+)*$
Description	A very crude url pattern.
Matches	http://www.jonas.no/~webs(i)der/jon_as.php | http://www.yahoo.com/net//ore
Non-Matches	http://www./no/good | imap://www.com/
Author	Rating: Martin Matusiak

Title	Test Details Pattern Title
Expression	^(((ht|f)tp(s?))\://)?(www.|[a-zA-Z].)[a-zA-Z0-9\-\.]+\.(com|edu|gov|mil|net|org|biz|info|name|museum|us|ca|uk)(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\;\?\'\\\+&%\$#\=~_\-]+))*$
Description	Version 1.3.0: I needed a regexp to validate URL's without the ht(f)tp(s):// and include North American domains (like .us and .ca) and there didn't seem to be one available...so I created one. It will also work with ASP QueryStrings and anchor URL's. If you have a problem with the expression or have any suggestions to improve, please write me and let me know. Added .uk domain and expression now allows for URLs that contain JSP session IDs. 4/14/04 - added ability to include URLs that start with server names.
Matches	www.blah.com:8103 | www.blah.com/blah.asp?sort=ASC | www.blah.com/blah.htm#blah
Non-Matches	www.state.ga | http://www.blah.ru
Author	Rating: Brad Dobyns

Title	Test Details Pattern Title
Expression	(^[a-zA-Z0-9]+://)
Description	Use in a .net Regex.Split() to pull the protocol out of a url into the first array entry.
Matches	myprot://server/path.asp
Non-Matches	server/path.asp
Author	Rating: Not yet rated. blake wolf

Title	Test Details Label all parts of a URL
Expression	(?:(?<protocol>http(?:s?)|ftp)(?:\:\/\/)) (?:(?<usrpwd>\w+\:\w+)(?:\@))? (?<domain>[^/\r\n\:]+)? (?<port>\:\d+)? (?<path>(?:\/.*)*\/)? (?<filename>.*?\.(?<ext>\w{2,4}))? (?<qrystr>\??(?:\w+\=[^\#]+)(?:\&?\w+\=\w+)*)* (?<bkmrk>\#.*)?
Description	I needed a regular expression to break urls into labled parts. This is what I came up with. Got a few ideas from regexlib.com and from this msdn article. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/reconbackreferences.asp http://www.domain.com/folder does return a match but will not grab the folder name unless there is &quot;/&quot; at the end. http://www.domain.com/folder/
Matches	https://192.168.0.2:80/users/~fname.lname/file.ext | ftp://user1:pwd@www.domain.com | http://www.dom
Non-Matches	www.domain.com | user1:pwd@domain.com | 192.168.0.2/folder/file.ext
Author	Rating: Ariel Merrell

Title	Test Details Pattern Title
Expression	[a-zA-Z]{3,}://[a-zA-Z0-9\.]+/*[a-zA-Z0-9/\\%_.]*\?*[a-zA-Z0-9/\\%_.=&]*
Description	A simple url search pattern that works against the most generic cases. A little better in terms of matches than the other URL expressions listed.
Matches	http://someserver | http://www.someserver.com/ | http://www.someserver.com/somefile.txt
Non-Matches	Thin | Lizzy
Author	Rating: Gerrard Lindsay

Title	Test Details Pattern Title
Expression	(\s|\n|^)(\w+://[^\s\n]+)
Description	will match free floating valid protocol + urls in text ... will not touch the ones wrapped in a tag, so that you can auto-link the ones that aren't :) couple of things to know : 1. if the url is next to a tag this won't work (eg : <br>http://www.acme.com), the url must either start with a \s, \n or any character other than >. 2. the pattern will match the preceding \s and \n too, so when you replace put them back in place $1 will either be \s or \n, $2 will be the exact match vb usage : set re = New RegExp re.Pattern ="(\s|\n|^)(\w+://[^\s\n]+)" strResult = re.Replace(strText, "$1<a href='$2' target='_new'>$2</a>")
Matches	http://www.acme.com | ftp://ftp.acme.com/hede | gopher://asdfasd.asdfasdf
Non-Matches	<a href="http://acme.com">http://www.acme.com</a> | <br>http://www.acme.
Author	Rating: ic onur

Title	Test Details Pattern Title
Expression	^(ht|f)tp(s?)\:\/\/[a-zA-Z0-9\-\._]+(\.[a-zA-Z0-9\-\._]+){2,}(\/?)([a-zA-Z0-9\-\.\?\,\'\/\\\+&%\$#_]*)?$
Description	Cheap and cheerful URL checker. Requires a http/https/ftp at the start and will then allow anything starting with at least a <something>.<something>.<something> then valid characters separated by dots and slashes
Matches	http://www.thedaddy.org | http://forum.thedaddy.org/index.html | ftp://hows.it.going_buddy/checkit/o
Non-Matches	www.thedaddy.org | http://hello | ftp://check.it
Author	Rating: John Main

Title	Test Details Pattern Title
Expression	^((((H|h)(T|t)|(F|f))(T|t)(P|p)((S|s)?))\://)?(www.|[a-zA-Z0-9].)[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,6}(\:[0-9]{1,5})*(/($|[a-zA-Z0-9\.\,\;\?\'\\\+&%\$#\=~_\-]+))*$
Description	Matches URLS that start with numbers and any TLD that is 2 to 6 characters long. Matches most URLs. Thanks to eveyone for suggesting modifications! UPDATES::[Nov. 11, 2005] Now it matches uppercase and lower case protocols. Updates::December 3, 2005 Added restriction to ports since they will only go up to 65535. (Thanks lorello) Keep the suggestions coming! Thanks for the heads up!!
Matches	hTtP://3iem.net/ | http://3iem.museum:1337/ | plik.co.uk
Non-Matches	http://foobar | lameurl.toolongtld
Author	Rating: Phil Cogbill

Title	Test Details Pattern Title
Expression	^((ht|f)tp(s?))\://([0-9a-zA-Z\-]+\.)+[a-zA-Z]{2,6}(\:[0-9]+)?(/\S*)?$
Description	Simple URL Validator -- allows http, https, ftp, ftps, 2-6 letter TLD, ports, any path. Sorry, no IP addresses. Not too fussy, but then, it's not too long either ;-)
Matches	http://www.site.com | https://www.secure.com:10000 | ftp://ftp.site.com/pub/files/
Non-Matches	www.site.com | https://www.site.longtld | ftp:/badformat.com
Author	Rating: Luke Arms

Title	Test Details Pattern Title
Expression	((ht|f)tp(s?))(:((\/\/)(?!\/)))(((w){3}\.)?)([a-zA-Z0-9\-_]+(\.(com|edu|gov|int|mil|net|org|biz|info|name|pro|museum|co\.uk)))(\/(?!\/))(([a-zA-Z0-9\-_\/]*)?)([a-zA-Z0-9])+\.((jpg|jpeg|gif|png)(?!(\w|\W)))
Description	This expression matches valid image URLs. The main use for this would be in UBBC tags. Written by RyanJ and Jick for FWD (http://flexwebdev.thenamesdan.com/)
Matches	http://www.location.com/images/image1.gif | http://www.location.com/images/mainImgs/image1.png
Non-Matches	/images/image1.jpeg | http://www.location.com/images/image1.swf | http://www.something.com/hello/..j
Author	Rating: Ryan Jones

Title	Test Details Pattern Title
Expression	<\s*a\s[^>]*\bhref\s*=\s* ('(?<url>[^']*)'|""(?<url>[^""]*)""|(?<url>\S*))[^>]*> (?<body>(.|\s)*?)<\s*/a\s*>
Description	Suitable for extraction of all hyperlinks in the format: <a ... href="..." ...> some text </a> from a text document. Separates in groups the components of the links (url and body).
Matches	<a href="javascript:'window.close()'">close the window</a> | <a target=&quo
Non-Matches	<aa href="test.htm">test</a> | < a href hr = 'http://www.nakov.com'>...&
Author	Rating: Svetlin Nakov

Title	Test Details Pattern Title
Expression	^(?<link>((?<prot>http:\/\/)*(?<subdomain>(www|[^\-\n]*)*)(\.)*(?<domain>[^\-\n]+)\.(?<after>[a-zA-Z]{2,3}[^>\n]*)))$
Description	I wrote this after I couldn't find an expression that would search for valid URLs, whether they had HTTP in front or not. This will find those that don't have hyphens anywhere in them (except for after the domain).
Matches	http://www.google.com | www.123google.com | www.google.com/help/me
Non-Matches	-123google.com | http://-123.123google.com
Author	Rating: Joe Pontani

Title	Test Details Pattern Title
Expression	(^[a-zA-Z][a-zA-Z0-9_]*)|(^[_][a-zA-Z0-9_]+)
Description	This pattern can be used for validating a string as a valid element name (e.g. variable or class name) in Microsoft .NET. See also http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcn7/html/vbconelementnames.asp
Matches	var | _withunder_score99 | TeSt
Non-Matches	_ | 123abc | 9
Author	Rating: Not yet rated. Howard Richards

Title	Test Details Pattern Title
Expression	(((ht|f)tp(s?):\/\/)|(www\.[^ \[\]\(\)\n\r\t]+)|(([012]?[0-9]{1,2}\.){3}[012]?[0-9]{1,2})\/)([^ \[\]\(\),;"'<>\n\r\t]+)([^\. \[\]\(\),;"'<>\n\r\t])|(([012]?[0-9]{1,2}\.){3}[012]?[0-9]{1,2})
Description	v2 A general purpose expresion to find url's (improved). Add heads to first part, example: ((imap:|(ht|f)tp(s?):\/\/)|(www\. to find url's like imap://www.com/, so ip's. No ipv6 (yet)
Matches	www.domain.com | http://www.blah.ru | https://192.168.0.2:80/users/~fname.lname/file.ext
Non-Matches	imap://.com
Author	Rating: Not yet rated. James Tikitiki

Title	Test Details Pattern Title
Expression	([\d\w-.]+?\.(a[cdefgilmnoqrstuwz]|b[abdefghijmnorstvwyz]|c[acdfghiklmnoruvxyz]|d[ejkmnoz]|e[ceghrst]|f[ijkmnor]|g[abdefghilmnpqrstuwy]|h[kmnrtu]|i[delmnoqrst]|j[emop]|k[eghimnprwyz]|l[abcikrstuvy]|m[acdghklmnopqrstuvwxyz]|n[acefgilopruz]|om|p[aefghklmnrstwy]|qa|r[eouw]|s[abcdeghijklmnortuvyz]|t[cdfghjkmnoprtvwz]|u[augkmsyz]|v[aceginu]|w[fs]|y[etu]|z[amw]|aero|arpa|biz|com|coop|edu|info|int|gov|mil|museum|name|net|org|pro)(\b|\W(?<!&|=)(?!\.\s|\.{3}).*?))(\s|$)
Description	This will find URLs in plain text. With or without protocol. It matches against all toplevel domains to find the URL in the text.
Matches	http://www.website.com/index.html | www.website.com | website.com
Non-Matches	Works in all my tests. Does not capture protocol.
Author	Rating: James Johnston

Title	Test Details Pattern Title
Expression	href\s*=\s*(?:(?:\"(?<url>[^\"]*)\")|(?<url>[^\s*] ))>(?<title>[^<]+)</\w>
Description	finds the url and url description for all links in a given text.
Matches	<td bgcolor="#ffffff" class="small"> <A HREF=" http://
Non-Matches	<td bgcolor="#ffffff" class="small"> <A HREF http://www.thepla
Author	Rating: Matt Bruce

Title	Test Details Pattern Title
Expression	\b([\d\w\.\/\+\-\?\:]*)((ht|f)tp(s|)\:\/\/|[\d\d\d|\d\d]\.[\d\d\d|\d\d]\.|www\.|\.tv|\.ac|\.com|\.edu|\.gov|\.int|\.mil|\.net|\.org|\.biz|\.info|\.name|\.pro|\.museum|\.co)([\d\w\.\/\%\+\-\=\&\?\:\\\"\'\,\|\~\;]*)\b
Description	Url matching
Matches	http://210.50.2.215/sd_new/WebBuilder.cgi?RegID=7449046&First=Ok&Upt=Ok&EditPage=3&S
Non-Matches	Hmmmm
Author	Rating: Johky Cheng

Title	Test Details Pattern Title
Expression	^(((ht|f)tp(s?))\://)?((([a-zA-Z0-9_\-]{2,}\.)+[a-zA-Z]{2,})|((?:(?:25[0-5]|2[0-4]\d|[01]\d\d|\d?\d)(?(\.?\d)\.)){4}))(:[a-zA-Z0-9]+)?(/[a-zA-Z0-9\-\._\?\,\'/\\\+&%\$#\=~]*)?$
Description	Hopefully an all-encompassing expression to validate a URL. Supports an optional protocol, either a domain or IP address, an optional port number and an optional path.
Matches	this.com | https://this.com:8080/this/this.htm | ftp://255.255.255.255/
Non-Matches	.this.com | https://this.com:/ | ftps://255.256.255.255/
Author	Rating: Not yet rated. Tom Hartland

Title	Test Details Pattern Title
Expression	([^\=&]+)(?<!param1|param2|param3)\=([^\=&]+)(&)?
Description	this regex eleminates all parameters from a html querry e.g. param1=hans&amp;param2=5&amp;badparam=5 so bad param will be deleted from the params given. its usefull to clean up urls from unwanted params you not allow befor using the query string for further issues.
Matches	param1=2&param2=2&param3=5&param4=9
Non-Matches	none
Author	Rating: Ludwig Gramberg

Title	Test Details Pattern Title
Expression	(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&%_\./-~-]*)?
Description	You can use this regular expression in your PHP scripts to convert entered URL in text to URL link. Example: $text=ereg_replace("(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&%_\./-~-]*)?","<a href=\"./redir.php?url=\\0\" target=\"_blank\">\\0</a>",$text);
Matches	http://diskusneforum.sk | www.diskusneforum.sk | ftp://123.123.123.123/
Non-Matches	diskusneforum.sk
Author	Rating: Martin Ille

Title	Test Details Pattern Title
Expression	^[http://www.|www.][\S]+$
Description	a simple url validation
Matches	http://www.regexlib.com/Add.aspx | www.regexlib.com/Add.aspx
Non-Matches	regexlib.com/Add.aspx
Author	Rating: Rahul Bhot

Title	Test Details URL
Expression	^((([hH][tT][tT][pP][sS]?|[fF][tT][pP])\:\/\/)?([\w\.\-]+(\:[\w\.\&%\$\-]+)*@)?((([^\s\(\)\<\>\\\"\.\[\]\,@;:]+)(\.[^\s\(\)\<\>\\\"\.\[\]\,@;:]+)*(\.[a-zA-Z]{2,4}))|((([01]?\d{1,2}|2[0-4]\d|25[0-5])\.){3}([01]?\d{1,2}|2[0-4]\d|25[0-5])))(\b\:(6553[0-5]|655[0-2]\d|65[0-4]\d{2}|6[0-4]\d{3}|[1-5]\d{4}|[1-9]\d{0,3}|0)\b)?((\/[^\/][\w\.\,\?\'\\\/\+&%\$#\=~_\-@]*)*[^\.\,\?\"\'\(\)\[\]!;<>{}\s\x7F-\xFF])?)$
Description	Matches a URL string by: protocol,subdomain,domain,ip address,port number,path and/or filename
Matches	http://regexlib.com | https://regexlib.com:80 | 66.129.120.94/Search.aspx
Non-Matches	http:/regexlib.com | https://regexlib.com:65536 | 66.129.120.256/Search.aspx.
Author	Rating: Dean Dal Bozzo

Title	Test Details Pattern Title
Expression	(?<!\\)\[(\\\[|\\\]|[^\[\]]|(?<!\\)\[.*(?<!\\)\])*(?<!\\)\]
Description	This regular expression will find the highest level groups within recursive tokens. For instance, if I have &quot;This is [just [an] example] of the [expression]&quot;, it'll find [just [an] example] and [expression], and nothing else. It will also not find an escaped bracket expression. If you want to replace the bracket with curly braces or parenthesis, be careful. As an example, curly braces will be: (?&lt;!\\)\{(\\\{|\\\}|[^\{\}]|(?&lt;!\\)\{.*(?&lt;!\\)\})*(?&lt;!\\)\}
Matches	[just] | [just [an] example]
Non-Matches	\[just]
Author	Rating: Joaquin Jares

Title	Test Details Pattern Title
Expression	(str\=)\s*(?<value>([a-zA-Z0-9\,\.]{1})*)
Description	Finding the value behind the char '='. The Exp. is designed to find parametres in specified URL's. In this example it find tha value of "str="
Matches	http://www.mysite.com/?str=yes | http://www.mysite.com/?find1=not&str=yes | this is my test and
Non-Matches	http://www.mysite.com/?find1=not | this is my test and str = no
Author	Rating: Mickey Jervin

Title	Test Details Pattern Title
Expression	<img .+ src[ ]*=[ ]*\"(.+)\"
Description	Gets the image url in an HTML <IMG> tag.
Matches	<img src="test.jpg"> | <img align = "left" src = "test.jpg"&g
Non-Matches	unknown
Author	Rating: Judah Himango

Title	Test Details Pattern Title
Expression	\b((?#optional port)(https?|ftp|file)://)? (?#sub domain)([a-z0-9](?:[-a-z0-9]*[a-z0-9])?\.)+ (?#top domain)(com\b|edu\b|biz\b|gov\b|in(?:t|fo)\b|mil\b|net\b|org\b|[a-z][a-z]\b) (?#optional port)(:\d+)? (?#optional path)(/[-a-z0-9_:\@&?=+,.!/~*'%\$]*)* (?#not ending in)(?<![.,?!]) (?#not enclosed in)(?!((?!(?:<a )).)*?(?:</a>)) (?#or enclosed in)(?!((?!(?:<!--)).)*?(?:-->))
Description	Yet Another URL Search. Useful for capturing URLs in raw text. Ignores URLs in HREF and comments. Turn off whitespacing to test!
Matches	http://www.google.com | google.com | http://some-domain.net/very/long/path/123.html
Non-Matches	subdomain.NonExistentTopDomain | <a href="http://www.google.com">www.google.com</
Author	Rating: Simon Ferguson

Title	Test Details Pattern Title
Expression	(?:(?:http|https)://(?:(?:[^/&=()/§, ]*?)*\.)+(?:\w{2,3})+?)(?:/+[^ ?,'§$&()={\[\]}]*)*(?:\?+.*)?$
Description	I don't give a f*** to the RFC, fix it yourself for RFC, I just need a valid webresource location. So add forbidden characters as you need them in the character classes or use it as it is. This RegEx is not for searching valid URLs, just for validating. Look at the trailing $.
Matches	http://www.test.org | http://www.test.org/page1 | http://www.test.org/folder/subfolder/page.html?get
Non-Matches	http://www.test.org% | http://www.test.org/hgh(s/ | http://www.test.org/hehe/notallowed&/page1.h
Author	Rating: Lars Echterhoff

Title	Test Details Pattern Title
Expression	((http|ftp|https):\/\/w{3}[\d]*.|(http|ftp|https):\/\/|w{3}[\d]*.)([\w\d\._\-#\(\)\[\]\\,;:]+@[\w\d\._\-#\(\)\[\]\\,;:])?([a-z0-9]+.)*[a-z\-0-9]+.([a-z]{2,3})?[a-z]{2,6}(:[0-9]+)?(\/[\/a-z0-9\._\-,]+)*[a-z0-9\-_\.\s\%]+(\?[a-z0-9=%&\.\-,#]+)?
Description	Here is my first regexp. I hope you like it! It parses quite a few different urls, although it's not a high-quality regexp. Http, Ftp protocols are supported, parameters and anchors too.
Matches	www.yahoo.com | ftp://user:pass@host.com:123 | http://localhost/page2.php?a=b&c=d#hello
Non-Matches	website.net
Author	Rating: Francis Marass

Title	Test Details Pattern Title
Expression	((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)\:\/\/([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@){0,1}((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]{2,5}[^:]){0,1}(\/(\s+|$|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+)){0,1})
Description	Modified version of Brian Bothwell's valid url submission. Eliminates a couple of the user discovered bugs, expands protocol recognition and considers trailing /
Matches	file://test.com/ | http://www.test.com:80/ | ftp://user@localhost/dir
Non-Matches	test.com | www.test.com:80:80 | https://user@user@test.com
Author	Rating: Not yet rated. Douglas Hurst

Title	Test Details Pattern Title
Expression	(?<url> (?<protocol> http(s?) | ftp )\:\/\/ (?<host> (?<hostname> ( (?<subdomain> ([a-z]\w*\.)*[a-z]\w* )\. )? ( (?<ip> (\d{1,3}\.){3}\d{1,3} ) | ( (?<org> [a-z]\w* )\. (?<domain> [a-z]{2,3} ) ) ) )? (\: (?<port> \d+ ) )? ) (?<path> (?<directory> (\/.*)*\/ )? (?<file> [a-z]\w*\.\w+ )? )? (\# (?<hash> [^?\n\r]+ ) )? (\? (?<search> (\&?[^\=\n\r]+\=[^\&\n\r]*)+ ) )? )
Description	Thanks to Ariel Merrell, as well as the folks who developed the javascript location object for some of the inspiration for this. This was intended primarily to help break down the parts of a URL for easier processing, and not as a validator. Please make sure the following options are met - .Net RE - Case Insensitive - Ignore pattern whitespace - Explicit Capture.
Matches	https://MySubDomain.123.0.0.1:443/MyDir/MySubDir/MyFile.html#MyHash?q=5%432&q2=paramval | http:/
Non-Matches	SomeDomain.com
Author	Rating: Not yet rated. Chris Strolia-Davis

Title	Test Details Pattern Title
Expression	<a[a-zA-Z0-9 ="'.:;?]*(href=[\"\'](http:\/\/|\.\/|\/)?\w+(\.\w+)*(\/\w+(\.\w+)?)*(\/|\?\w*=\w*(&\w*=\w*)*)?[\"\'])*(>[a-zA-Z0-9 ="'<>.:;?]*</a>)
Description	i've merged two regular expression those i found on this site. thanks to the owners &quot;Aleš Potocnik and Andrew Lee &quot;. i used their expression to make mine. this expression finds the URL/Hyperlink with the HTML tags.
Matches	<a href="http://www.google.co.in/hi">Hindi</a>
Non-Matches	href="http://www.google.co.in/hi"
Author	Rating: Not yet rated. himraj love

Title	Test Details Pattern Title
Expression	<a.*?href=(.*?)(?((?:\s.*?)>.*?</a>)(?:(?:\s.*?)>(.*?)</a>)|(?:>(.*?)</a>))
Description	this Expression use conditional expression to eveluate parameter after "HREF" and executes the yes/no part of the expression. this expression finds <A> TAG and returns value of "HREF" and the value hold in between <a></a> tags. the expression returns maximum 3 sub matches. the first match returns the "HREF" tag value and rest of two holds the value of the tag alternativly. so after executing the expression you need to itarate through all the submatches and need to find out non NULL tags to get value. the output of the above matching expamples would be like this : 1: "/url?sa=p&pref=ig&pval=2&q=http://www.google.co.in/ig%3Fhl%3Den" 2:[Personalized Home] 3:[] or NULL the output of the second matching example would be like this. 1:/advanced_search?hl=en 2:[] or NULL 3:[Advanced Search]
Matches	<a href="/url?sa=p&pref=ig&pval=2&q=http://www.google.co.in/ig%3Fhl%3Den" o
Non-Matches	none
Author	Rating: himraj love

Title	Test Details URL Test
Expression	(?#WebOrIP)((?#protocol)((http|https):\/\/)?(?#subDomain)(([a-zA-Z0-9]+\.(?#domain)[a-zA-Z0-9\-]+(?#TLD)(\.[a-zA-Z]+){1,2})|(?#IPAddress)((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])))+(?#Port)(:[1-9][0-9]*)?)+(?#Path)((\/((?#dirOrFileName)[a-zA-Z0-9_\-\%\~\+]+)?)*)?(?#extension)(\.([a-zA-Z0-9_]+))?(?#parameters)(\?([a-zA-Z0-9_\-]+\=[a-z-A-Z0-9_\-\%\~\+]+)?(?#additionalParameters)(\&([a-zA-Z0-9_\-]+\=[a-z-A-Z0-9_\-\%\~\+]+)?)*)?
Description	I needed a regex for validating URLs, couldn't find a suitable one, so wrote this, with comments! It matches any valid web URL (Address or IP, with or without protocol), including optional port number, directory path, filname.extension and any paramater pairs. Hope it helps, even if just to understand expressions easier!
Matches	www.test.com|http://www.test.com|234.232.12.23:8080|sub.test.com/dir/file.ext?param=val&param2=val2
Non-Matches	/file.htm|256.0.0.0
Author	Rating: David Barker

Title	Test Details RFC URL
Expression	(([\w]+:)?//)?(([\d\w]|%[a-fA-f\d]{2,2})+(:([\d\w]|%[a-fA-f\d]{2,2})+)?@)?([\d\w][-\d\w]{0,253}[\d\w]\.)+[\w]{2,4}(:[\d]+)?(/([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)*(\?(&?([-+_~.\d\w]|%[a-fA-f\d]{2,2})=?)*)?(#([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)?
Description	A pretty decent URL matching expression. I've followed most RFC guidelines, so it'll match most anything ya throw at it (And wont match what it's not supposed to). If you see any problems with it, please email me so I can make the appropriate changes :)
Matches	http://www.domain.com | http://domain.com | http://domain.com | https://domain.com | https://sub.domain-name.com:8080 | http://domain.com/dir%201/dir_2/program.ext?var1=x&var2=my%20value | domain.com/index.html#bookmark
Non-Matches	Normal Text. | http://a.com | http://www.domain-.com
Author	Rating: r4cc00n

Title	Test Details Matching urls in free text
Expression	((www|http)(\W+\S+[^).,:;?\]\} \r\n$]+))
Description	A regular expression which allows me to find strings of text floating around in free text that are in fact URLs. I need to tag these as <url>www.bmj.com/advice</url>. The problem has been allowing special characters in the url, but not mixing them up with genuine punctuation marks at the end of the url in the text-e.g. '.' or '?' or ) or ';' etc)
Matches	www.bmjpg.com/advice&search=?light+dark
Non-Matches	www.bmjpg.com/advice&search=?light+dark?
Author	Rating: Sean Harrop

Title	Test Details Img Src Attribute
Expression	src=(?:\"|\')?(?<imgSrc>[^>]*[^/].(?:jpg|bmp|gif|png))(?:\"|\')?
Description	This pattern matches an image url attribute of an img html tag. It searches for the src attribute and grabs the value as a grouped match - "imgSrc".
Matches	src="http://www.thoughtlava.com/images/logo.gif" | src='http://www.thoughtlava.com/images/logo.gif' | src=http://www.thoughtlava.com/images/logo.gif
Non-Matches	src="http://www.thoughtlava.com/images/logo.wmf"
Author	Rating: Steven Pena

Title	Test Details Simple App Relative Path
Expression	^~/[0-9a-zA-Z_][0-9a-zA-Z/_-]*\.[0-9a-zA-Z_-]+$
Description	Matches the app relative path of a file. This will work for relative paths of URLs. Not very complicated but will work to do basic validation.
Matches	~/myPage.htm | ~/123._aBc2 | ~/Hello_World-Page.aspx
Non-Matches	mybadPage.htm | ~/.Not | ~/Very. | ~/Good
Author	Rating: C. Brendan Enrick

Title	Test Details Strip Domain from URL
Expression	http://[^/]*/
Description	I was looking for a long time for a simple regex to strip the domain name from a long url or to Get rid of directories and pages. I found a simple one that I wanted to share. If you have http://www.google.com/products/bob?gmail.ckj it will return only http://www.google.com getting rid of all the other parts of the url
Matches	http://www.google.com
Non-Matches	http://www.google.com/products/bob?gmail.ckj
Author	Rating: Not yet rated. Adil Berdai

Title	Test Details JDBC DB2 Url
Expression	^jdbc:db2://((?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))|(?:(?:(?:(?:[A-Z|a-z])(?:[\w|-]){0,61}(?:[\w]?[.]))*)(?:(?:[A-Z|a-z])(?:[\w|-]){0,61}(?:[\w]?)))):([0-9]{1,5})/([0-9|A-Z|a-z|_|#|$]{1,16})$
Description	Pattern for testing a jdbc db2 url (Type 4). Format jdbc:db2://<ServerName><Port>/<DatabaseName>
Matches	jdbc:db2://MyServer:50008/MyDb or jdbc:db2://10.1.63.57:50008/MyDb
Non-Matches	jdbc:db2://MyServer/MyDb
Author	Rating: Not yet rated. Martin Egli

Title	Test Details Email - RFC 3696
Expression	^[a-z0-9!$'*+\-_]+(\.[a-z0-9!$'*+\-_]+)*@([a-z0-9]+(-+[a-z0-9]+)*\.)+([a-z]{2}|aero|arpa|biz|cat|com|coop|edu|gov|info|int|jobs|mil|mobi|museum|name|net|org|pro|travel)$
Description	Checks email format against RFC 3696 (http://tools.ietf.org/html/rfc3696). Allows all characters described in Sections 2 and 3 of the RFC EXCEPT those described in Section 4.3 as unsafe for mailto URLs without encoding. Allows any 2-letter TLD plus any of the current gTLDs as listed at http://www.icann.org/registries/top-level-domains.htm. Does not accept quoted strings in the local part or IP addresses in lieu of the domain name. Does not enforce length limits. Intended to be used as case-insensitive. Comments are appreciated!
Matches	bob@smith.com | bob.j@j.smith.museum | !$'*+-_@a--1.ca
Non-Matches	.bob@smith.com | bob..j@smith.com | bob@-smith.com
Author	Rating: Not yet rated. David Thompson

Title	Test Details vaildate URL
Expression	^[http|ftp|wap|https]{3,5}:\//\www\.\w*\.[com|net]{2,3}$
Description	it validates a simple URL like http://www.google.com , ftp://www.soso.com
Matches	http://www.google.com
Non-Matches	httpp://wwww.go.com.in
Author	Rating: Not yet rated. rob

Title	Test Details Hyperlink
Expression	<a\s{1}href="(?<url>.*?)"(\s?target="(?<target>_(blank|new|parent|self|top))")?(\s?class="(?<class>.*?)")?(\s?style="(?<style>.*?)")?>(?<title>.*?)</a>
Description	Get the URL, target, class, style and description from a hyperlink
Matches	<a href="www.test.com" target="_blank" class="testclass" style="padding:0;">This is a test link</a>
Non-Matches	www.test.com
Author	Rating: Not yet rated. Matt Jones

Title	Test Details HTML Anchor tag
Expression	<a\s+(?:(?:\w+\s*=\s*)(?:\w+|"[^"]*"|'[^']*'))*?\s*href\s*=\s*(?<url>\w+|"[^"]*"|'[^']*')(?:(?:\s+\w+\s*=\s*)(?:\w+|"[^"]*"|'[^']*'))*?>[^<]+</a>
Description	This will match an entire HTML tag and will capture the href portion into the named capture "url". It will match any anchor tag with any number of attributes.
Matches	The entire &lt;a href=""&gt;&lt;/a&gt; tag
Non-Matches	Links that include any html within the tag.
Author	Rating: Not yet rated. Derek Pinkerton

Title	Test Details HTML Anchor (link) tag
Expression	<a\s+(?:(?:\w+\s*=\s*)(?:\w+|"[^"]*"|'[^']*'))*?\s*href\s*=\s*(?<url>\w+|"[^"]*"|'[^']*')(?:(?:\s+\w+\s*=\s*)(?:\w+|"[^"]*"|'[^']*'))*?>.+?</a>
Description	This regex will match all html link tags and captures the url into a named capture "url". There can be any html code between the opening and closing link tags. You must use this with the multiline and ignore case options selected.
Matches	Any html link (anchor) tag with any content between the opening and closing link tags
Non-Matches	all other html tags, link tags without an href section.
Author	Rating: Derek Pinkerton

Title	Test Details url
Expression	(?:(?:(?:http|ftp|gopher|telnet|news)://)(?:w{3}\.)?(?:[a-zA-Z0-9/;\?&=:\-_\$\+!\*'\(\|\\~\[\]#%\.])+)
Description	an expression to match internet addresses with one of the known protocolls (http, ftp, gopher, telnet, news)
Matches	http://ifi.lmu.de | ftp://leo.org | gopher://gopher.com
Non-Matches	www.google.com
Author	Rating: Kis Hajnalka

Title	Test Details url
Expression	(?:(?:[a-zA-Z0-9/;\?&=:\-_\$\+!\*'\(\|\\~\[\]#%\.](?!www))+(?:\.[Cc]om|\.[Ee]du|\.[gG]ov|\.[Ii]nt|\.[Mm]il|\.[Nn]et|\.[Oo]rg|\.[Bb]iz|\.[Ii]nfo|\.[Nn]ame|\.[Pp]ro|\.[Aa]ero|\.[cC]oop|\.[mM]useum|\.[Cc]at|\.[Jj]obs|\.[Tt]ravel|\.[Aa]rpa|\.[Mm]obi|\.[Aa]c|\.[Aa]d|\.[aA]e|\.[aA]f|\.[aA]g|\.[aA]i|\.[aA]l|\.[aA]m|\.[aA]n|\.[aA]o|\.[aA]q|\.[aA]r|\.[aA]s|\.[aA]t|\.[aA]u|\.[aA]w|\.[aA]z|\.[aA]x|\.[bB]a|\.[bB]b|\.[bB]d|\.[bB]e|\.[bB]f|\.[bB]g|\.[bB]h|\.[bB]i|\.[bB]j|\.[bB]m|\.[bB]n|\.[bB]o|\.[bB]r|\.[bB]s|\.[bB]t|\.[bB]v|\.[bB]w|\.[bB]y|\.[bB]z|\.[cC]a|\.[cC]c|\.[cC]d|\.[cC]f|\.[cC]g|\.[cC]h|\.[cC]i|\.[cC]k|\.[cC]l|\.[cC]m|\.[cC]n|\.[cC]o|\.[cC]r|\.[cC]s|\.[cC]u|\.[cC]v|\.[cC]x|\.[cC]y|\.[cC]z|\.[dD]e|\.[dD]j|\.[dD]k|\.[dD]m|\.[dD]o|\.[dD]z|\.[eE]c|\.[eE]e|\.[eE]g|\.[eE]h|\.[eE]r|\.[eE]s|\.[eE]t|\.[eE]u|\.[fF]i|\.[fF]j|\.[fF]k|\.[fF]m|\.[fF]o|\.[fF]r|\.[gG]a|\.[gG]b|\.[gG]d|\.[gG]e|\.[gG]f|\.[gG]g|\.[gG]h|\.[gG]i|\.[gG]l|\.[gG]m|\.[gG]n|\.[gG]p|\.[gG]q|\.[gG]r|\.[gG]s|\.[gG]t|\.[gG]u|\.[gG]w|\.[gG]y|\.[hH]k|\.[hH]m|\.[hH]n|\.[hH]r|\.[hH]t|\.[hH]u|\.[iI]d|\.[iI]e|\.[iI]l|\.[iI]m|\.[iI]n|\.[iI]o|\.[iI]q|\.[iI]r|\.[iI]s|\.[iI]t|\.[jJ]e|\.[jJ]m|\.[jJ]o|\.[jJ]p|\.[kK]e|\.[kK]g|\.[kK]h|\.[kK]i|\.[kK]m|\.[kK]n|\.[kK]p|\.[kK]r|\.[kK]w|\.[kK]y|\.[kK]z|\.[lL]a|\.[lL]b|\.[lL]c|\.[lL]i|\.[lL]k|\.[lL]r|\.[lL]s|\.[lL]t|\.[lL]u|\.[lL]v|\.[lL]y|\.[mM]a|\.[mM]c|\.[mM]d|\.[mM]g|\.[mM]h|\.[mM]k|\.[mM]l|\.[mM]m|\.[mM]n|\.[mM]o|\.[mM]p|\.[mM]q|\.[mM]r|\.[mM]s|\.[mM]t|\.[mM]u|\.[mM]v|\.[mM]w|\.[mM]x|\.[mM]y|\.[mM]z|\.[nN]a|\.[nN]c|\.[nN]e|\.[nN]f|\.[nN]g|\.[nN]i|\.[nN]l|\.[nN]o|\.[nN]p|\.[nN]r|\.[nN]u|\.[nN]z|\.[oO]m|\.[pP]a|\.[pP]e|\.[pP]f|\.[pP]g|\.[pP]h|\.[pP]k|\.[pP]l|\.[pP]m|\.[pP]n|\.[pP]r|\.[pP]s|\.[pP]t|\.[pP]w|\.[pP]y|\.[qP]a|\.[rR]e|\.[rR]o|\.[rR]u|\.[rR]w|\.[sS]a|\.[sS]b|\.[sS]c|\.[sS]d|\.[sS]e|\.[sS]g|\.[sS]h|\.[Ss]i|\.[sS]j|\.[sS]k|\.[sS]l|\.[sS]m|\.[sS]n|\.[sS]o|\.[sS]r|\.[sS]t|\.[sS]v|\.[sS]y|\.[sS]z|\.[tT]c|\.[tT]d|\.[tT]f|\.[tT]g|\.[tT]h|\.[tT]j|\.[tT]k|\.[tT]l|\.[tT]m|\.[tT]n|\.[tT]o|\.[tT]p|\.[tT]r|\.[tT]t|\.[tT]v|\.[tT]w|\.[tT]z|\.[uU]a|\.[uU]g|\.[uU]k|\.[uU]m|\.[uU]s|\.[uU]y|\.[uU]z|\.[vV]a|\.[vV]c|\.[vV]e|\.[vV]g|\.[vV]i|\.[vV]n|\.[vV]u|\.[wW]f|\.[wW]s|\.[yY]e|\.[yY]t|\.[yY]u|\.[zZ]a|\.[zZ]m|\.[zZ]w))
Description	here are specified all the top level domains. In fact, this expression gets the urls only till the TLD.
Matches	webmail.ifi.lmu.de
Non-Matches	kis.hajnalka
Author	Rating: Kis Hajnalka

Title	Test Details url
Expression	(?:(?:w{3}\.)(?:[a-zA-Z0-9/;\?&=:\-_\$\+!\*'\(\|\\~\[\]#%\.])+[\.com|\.edu|\.gov|\.int|\.mil|\.net|\.org|\.biz|\.info|\.name|\.pro|\.aero|\.coop|\.museum|\.cat|\.jobs|\.travel|\.arpa|\.mobi|\.ac|\.ad|\.ae|\.af|\.ag|\.ai|\.al|\.am|\.an|\.ao|\.aq|\.ar|\.as|\.at|\.au|\.aw|\.az|\.ax|\.ba|\.bb|\.bd|\.be|\.bf|\.bg|\.bh|\.bi|\.bj|\.bm|\.bn|\.bo|\.br|\.bs|\.bt|\.bv|\.bw|\.by|\.bz|\.ca|\.cc|\.cd|\.cf|\.cg|\.ch|\.ci|\.ck|\.cl|\.cm|\.cn|\.co|\.cr|\.cs|\.cu|\.cv|\.cx|\.cy|\.cz|\.de|\.dj|\.dk|\.dm|\.do|\.dz|\.ec|\.ee|\.eg|\.eh|\.er|\.es|\.et|\.eu|\.fi|\.fj|\.fk|\.fm|\.fo|\.fr|\.ga|\.gb|\.gd|\.ge|\.gf|\.gg|\.gh|\.gi|\.gl|\.gm|\.gn|\.gp|\.gq|\.gr|\.gs|\.gt|\.gu|\.gw|\.gy|\.hk|\.hm|\.hn|\.hr|\.ht|\.hu|\.id|\.ie|\.il|\.im|\.in|\.io|\.iq|\.ir|\.is|\.it|\.je|\.jm|\.jo|\.jp|\.ke|\.kg|\.kh|\.ki|\.km|\.kn|\.kp|\.kr|\.kw|\.ky|\.kz|\.la|\.lb|\.lc|\.li|\.lk|\.lr|\.ls|\.lt|\.lu|\.lv|\.ly|\.ma|\.mc|\.md|\.mg|\.mh|\.mk|\.ml|\.mm|\.mn|\.mo|\.mp|\.mq|\.mr|\.ms|\.mt|\.mu|\.mv|\.mw|\.mx|\.my|\.mz|\.na|\.nc|\.ne|\.nf|\.ng|\.ni|\.nl|\.no|\.np|\.nr|\.nu|\.nz|\.om|\.pa|\.pe|\.pf|\.pg|\.ph|\.pk|\.pl|\.pm|\.pn|\.pr|\.ps|\.pt|\.pw|\.py|\.qa|\.re|\.ro|\.ru|\.rw|\.sa|\.sb|\.sc|\.sd|\.se|\.sg|\.sh|\..si|\.sj|\.sk|\.sl|\.sm|\.sn|\.so|\.sr|\.st|\.sv|\.sy|\.sz|\.tc|\.td|\.tf|\.tg|\.th|\.tj|\.tk|\.tl|\.tm|\.tn|\.to|\.tp|\.tr|\.tt|\.tv|\.tw|\.tz|\.ua|\.ug|\.uk|\.um|\.us|\.uy|\.uz|\.va|\.vc|\.ve|\.vg|\.vi|\.vn|\.vu|\.wf|\.ws|\.ye|\.yt|\.yu|\.za|\.zm|\.zw](?:[a-zA-Z0-9/;\?&=:\-_\$\+!\*'\(\|\\~\[\]#%\.])*)
Description	So, that's it. Gets url-s with "www", BUT without the protocols. If you need one regEx with the protocols, search for it in this database, I've added one
Matches	www.google.com
Non-Matches	http://www.google.com
Author	Rating: Not yet rated. Kis Hajnalka

Title	Test Details Path from jar
Expression	jar:file:/(([A-Z]:)?/([A-Z 0-9 * ( ) + \- & $ # @ _ . ! ~ /])+)(/[A-Z 0-9 _ ( ) \[ \] - = + _ ~]+\.jar!)
Description	In java using this.getClass().getResource(""); will result in a jar:file:/ etc url ending with yourjarfile.jar!/internal/package/path/ this regular expression matches the directory before the internal jar path declaration returning the physical directory the file resides in. should work in both posix and windows machines (untested for posix*)
Matches	jar:file:/C:/installation/path/jarfile.jar!/com/regexlib/example
Non-Matches	Any text not using internal jar file url
Author	Rating: Alex Ries

Title	Test Details URL Parsing Regex
Expression	(?<protocol>http(s)?|ftp)://(?<server>([A-Za-z0-9-]+\.)*(?<basedomain>[A-Za-z0-9-]+\.[A-Za-z0-9]+))+((/?)(?<path>(?<dir>[A-Za-z0-9\._\-]+)(/){0,1}[A-Za-z0-9.-/]*)){0,1}
Description	This regex matches fully qualified external urls (http, https, or ftp). It uses the ms specific group-naming structure to present friendly named groups back to the user.
Matches	http://www.myserver.mydomain.com/myfolder/mypage.aspx
Non-Matches	www.myserver.mydomain.com/myfolder/mypage.aspx
Author	Rating: Scott Sargent

Title	Test Details Relative paths in HTML
Expression	(<(?:.*?)\s)href\s*=([\s"'])*/?([^\2:#]+?)\2((?:.*?)>)
Description	This expression matches all HREF relative paths, but not full URLs or dead # links. It can be used for selecting paths that need to be updated in HTML that has replaced from its original page onto a new one. It matches the entire containing tag with the following groups: 1 - the start of the containing tag through the space before the attribute, 2 - the delimiter between the attribute's equal sign and its value (e.g. a double quote), 3 - the attribute value, 4 - the remainder of the tag after the closing attribute value delimiter.
Matches	<a href="joe's test.htm" /> | <a href='/test2.htm'> | <a href = test2.htm />
Non-Matches	<a href="http://www.test.com/test.htm" /> | <a href = '#' />
Author	Rating: Not yet rated. Joe Theriault

Title	Test Details website URL
Expression	(http://|)(www\.)?([^\.]+)\.(\w{2}|(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum))$
Description	I think this is one of the website url we can validate
Matches	http://www.proarchitsoulutions.com
Non-Matches	ww.proarchitsolutions.com | ftp://ftp.omega.com
Author	Rating: kiran kumar

Title	Test Details Link Text and URL from anchor
Expression	<a.+?href\=(?<link>.+?)(?=[>\s]).*?>(?<lnkText>.+?)</a>
Description	Captures an html anchors URL and Link Text. Could be used to clean up formatting of links in an html document.
Matches	<a href=http://capturedLink target=blah>captured Text</a>|<a class="blah" href="http://capturedLink" target="blah">captured Text</a>
Non-Matches	Any other html tags
Author	Rating: Ariel Merrell

Title	Test Details Easiest URL Link
Expression	(http://|https://)([a-zA-Z0-9]+\.[a-zA-Z0-9\-]+|[a-zA-Z0-9\-]+)\.[a-zA-Z\.]{2,6}(/[a-zA-Z0-9\.\?=/#%&\+-]+|/|)
Description	As always, I couldn't find a regex that worked for me. It only covers full urls with http:// and https://, obviously if you want to add ftp:// then change the first part to: (http://|https://|ftp://) etc..., you get my drift. If you want to cover everything, like short urls, try this site: http://internet.ls-la.net/folklore/url-regexpr.html
Matches	http://www.url.com, http://www.url.com.au, http://www.url.co.nz, http://www.url123.com, http://www.url-123.com, http://www.url.com/, http://www.url.com/page.html, http://www.url.com/page.asp?id=you123&num=%60&pass=big-long+password#anchor
Non-Matches	http://www.url.1com, http://www.url.com.1au
Author	Rating: Oz

Title	Test Details RegEx for email validation
Expression	/^([a-zA-Z0-9])(([\-.]|[_]+)?([a-zA-Z0-9]+))*(@){1}[a-z0-9]+[.]{1}(([a-z]{2,3})|([a-z]{2,3}[.]{1}[a-z]{2,3}))$/
Description	This expresssion will validate all possible formats except if web site URL contains hyphen characters like aa@a-b-c.com. I will include this feature also in next version.
Matches	a@abc.com,a@abc.co.in,aa.bb@abc.com.sg,aa_bb@abc.biz,aa.C.bb@abc.com,aa_1900@abc.co.in
Non-Matches	@abc.com,a@abc.co.in.in,a@abc.com.in.in,a@a-b-c.com
Author	Rating: Rafiq

Title	Test Details URL
Expression	^((http|https|ftp)\://|www\.)[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,4}(/[a-zA-Z0-9\-\._\?=\,\'\+%\$#~]*[^\.\,\)\(\s])*$
Description	Matches any valid URLs which can activate links in a text.
Matches	www.something.com | http://something.com/something?action=delete | http://www.something.com/~etc
Non-Matches	http://www.something.com/, | wwww.something.com |
Author	Rating: Viktor Nagy

Title	Test Details url validation
Expression	(((ht|f)tp(s?):\/\/)|(([\w]{1,})\.[^ \[\]\(\)\n\r\t]+)|(([012]?[0-9]{1,2}\.){3}[012]?[0-9]{1,2})\/)([^ \[\]\(\),;"'<>\n\r\t]+)([^\. \[\]\(\),;"'<>\n\r\t])|(([012]?[0-9]{1,2}\.){3}[012]?[0-9]{1,2})
Description	url validation with tiped errors
Matches	w.example.com|wwww.example.com
Non-Matches	example.com
Author	Rating: Not yet rated. jose aviles

Title	Test Details Smarter URL extractor from plain text
Expression	(http(s?)://|[a-zA-Z0-9\-]+\.)[a-zA-Z0-9/~\-]+\.[a-zA-Z0-9/~\-_,&\?\.;]+[^\.,\s<]
Description	This regex avoids matching typical mistakes where a sentence ends but there is no space after the full stop (period). Other regexes will think any two words with a dot in between is a URL! My regex does not require http:// and if there isn't http:// it will need to find AT LEAST two dots to guarantee its likely to be a URL and not a sentence that's missing a space like this.It will match www.test.com, http://test.com, test.com/index.htm but it will NOT match test.com. It will not match a dot or a comma at the very end which some people may type when including a URL in a sentence like this www.test.com, or this www.test.com.
Matches	sub.test.com
Non-Matches	test.com
Author	Rating: Gary F

Title	Test Details HTML href
Expression	(?i)(?s)<a[^>]+?href="?(?<url>[^"]+)"?>(?<innerHtml>.+?)</a\s*>
Description	Matches a complete HTML href tag, placing the URL into a group named "url" and the innerHTML into a group named "innerHtml"
Matches	<a href="http://regexplib.com">Inner <span>html</span></a>
Non-Matches	<a href="http://regexplib.com">
Author	Rating: Kevin Spencer

Title	Test Details Validate URL
Expression	^((http://)|(https://))((([a-zA-Z0-9_-]*).?([a-zA-Z0-9_-]*))|(([a-zA-Z0-9_-]*).?([a-zA-Z0-9_-]*).?([a-zA-Z0-9_-]*)))/?([a-zA-Z0-9_/?%=&+#.-~]*)$
Description	A regex I came up with for validating urls, didn't test thoroughly but seems to do the trick.
Matches	http://sportsalert.net, https://www.sportsalert.net, http://sportsalert.net.uk, http://sportsalert.net/index.html, http://sportsalert.net/subdirectory, http://sportsalert.net?var1=param1&var2=param2
Non-Matches	www.sportsalert.net, http://.sportsalert.net, http://sportsalert..net
Author	Rating: Justin Toth

Title	Test Details URL Validator
Expression	^(http(?:s)?\:\/\/[a-zA-Z0-9\-]+(?:\.[a-zA-Z0-9\-]+)*\.[a-zA-Z]{2,6}(?:\/?|(?:\/[\w\-]+)*)(?:\/?|\/\w+\.[a-zA-Z]{2,4}(?:\?[\w]+\=[\w\-]+)?)?(?:\&[\w]+\=[\w\-]+)*)$
Description	A simple but powerful URL validating regex. Accepts multiple subdomains and subdirectories. Even accept query strings. Does not accept ports. That's not what this is for. UPDATED! with user's suggestions. Accepts http or https. Removed underscores from domain name. Accepts optional "/" on end of address.
Matches	http://website.com | http://subdomain.web-site.com/cgi-bin/perl.cgi?key1=value1&key2=value2
Non-Matches	http://website.com/perl.cgi?key= | http://web-site.com/cgi-bin/perl.cgi?key1=value1&key2
Author	Rating: Ted Cambron

Title	Test Details Image URL
Expression	^(http\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(?:\/\S*)?(?:[a-zA-Z0-9_])+\.(?:jpg|jpeg|gif|png))$
Description	A nice little regex to verify a URL pointing towards an image. Can be useful.
Matches	http://website.com/directory/image.gif
Non-Matches	www.website.com/image.php
Author	Rating: Not yet rated. Ted Cambron

Title	Test Details Number limiting x digits before decimal, and y digits after decimal point.
Expression	^([0-9]{0,5}|[0-9]{0,5}\.[0-9]{0,3})$
Description	This regular expression is intended to limit numeric entries by allowed places before and after the decimal point. It also recognizes whole numbers. In this example the value cannot exceed 99999.999. To change the range, simply edit the numbers in curly braces. For example, to allow 7 digits (millions) before the decimal point, change both instances of {0,5} to {0,7}. Likewise, to change the decimals from allowing thousandths (3 digits) to just hundreths, change the {0,3} to {0,2}. This can be useful for numeric fields in SQL. This example was made to accommodate a numeric(8,3) field definition.
Matches	0 | 1 | 1.55 | 54321.123 | .12
Non-Matches	abc | 654321 | 12..34 | .1234
Author	Rating: Ken Palmer

Title	Test Details Query String Regex
Expression	^((?:\?[a-zA-Z0-9_]+\=[a-zA-Z0-9_]+)?(?:\&[a-zA-Z0-9_]+\=[a-zA-Z0-9_]+)*)$
Description	This is a very simple regex that check the query part of a string. That is to say anything after the "?" at the end of an URL.
Matches	?key=value | ?key1=value1&key2=value2
Non-Matches	key=value | ?key=value&
Author	Rating: Ted Cambron

Title	Test Details Url validation
Expression	(http|https)\:\/\/(([\d]{1,3}\.[\d]{1,3}\.[\d]{1,3}\.[\d]{1,3})|([\w\-]+\.)+(((af|ax|al|dz|as|ad|ao|ai|aq|ag|am|aw|au|at|az|bs|bh|bd|bb|by|be|bz|bj|bm|bt|bo|ba|bw|bv|br|io|bn|bg|bf|kh|cm|ca|cv|ky|cf|td|cl|cn|cx|cc|km|cg|cd|ck|cr|ci|hr|cu|cy|cz|dk|dj|dm|do|ec|eg|sv|gq|er|ee|et|fk|fo|fj|fi|fr|gf|pf|tf|ga|gm|ge|de|gh|gi|gr|gl|gd|gp|gu|gt| gg|gn|gw|gy|ht|hm|va|hn|hk|hu|is|id|ir|iq|ie|im|il|it|jm|jp|je|jo|kz|ke|ki|kp|kr|kw|kg|la|lv|lb|ls|lr|ly|li|lt|lu|mo|mk|mg|mw|my|mv|ml|mt|mh|mq|mr|yt|mx|fm|md|mc|mn|ms|ma|mz|mm|nr|np|nl|an|nc|nz|ni|ng|nu|nf|mp|no|om|pk|pw|ps|pa|pg|py|pe|ph|pn|pl|pt|qa|re|ro|ru|rw|sh|kn|lc|pm|vc|ws|sm|st|sa|sn|cs|sc|sl|sg|sk|si|sb|so|za|gs|es|lk|sd|sr|sj|sz|se|ch|sy|tw|tj|tz|th|tl|tg|tk|to|tt|tn|tr|tm|tc|tv|ug|ua|gb|us|um|uy|uz|vu|ve|vn|vg|vi|wf|eh|ye|zm|zw|uk|com|edu|gov|int|mil|net|org|biz|info|name|pro|aero|coop|museum|arpa|co|in|ne|bi|na|pr|ae|mu|ar))))(:[\d]{1,4})?($|(\/([a-zA-Z0-9\.\?=/#%&\+-])*)*|\/)
Description	An URL validation pattern with respect for TLD domains. It also validates ip urls, but it doesn't check for ip single parts range (1-255). It supports port specification.
Matches	http://www.gianlucaesposito.it, http://www.gianluca.esposito.it, http://www.gianluca-esposito.it, http://www.gianlucaesposito.it/, http://www.gianlucaesposito.it/index.html, http://www.gianlucaesposito.it/index.php?id=1, http://www.gianlucaesposito.it:8080, http://www.gianlucaesposito.it:8080/, http://www.gianlucaesposito.it:8080/index.html, http://127.0.0.1, http://127.0.0.1:8080/, http://127.0.0.1:8080/index.html
Non-Matches	http://www.gianlucaesposito.xx, http://www.gianluca-esposito.yy, http://www.gianluca.esposito.zzz
Author	Rating: Gianluca Esposito

Title	Test Details Linkify
Expression	\b(ht|f)tp[s]?://[^\s\n\r\t\<\>]+(?=[\b\s\n\r\t\<])
Description	This regex attempts to "linkify" a url that isn't already part of an &lt;a&gt; tag.
Matches	http://regexlib.com
Non-Matches	&lt;a href="http://regexlib.com"&gt;
Author	Rating: Erik Silkensen

Title	Test Details URL Validation
Expression	^((http|https|ftp|ftps)+(:\/\/))?(www\.)? (([a-z0-9\.-]{2,})\.(ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|fx|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|aero|asia|cat|coop|edu|gov|jobs|mil|mobi|museum|tel|travel|pro|post|biz|com|info|int|name|net|org|pro|arpa) |((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9]))) (:([1-9][0-9]?[0-9]?[0-9]?|[1-5][0-9][0-9][0-9][0-9]|6[0-4][0-9][0-9][0-9]|65[0-4][0-9][0-9]|655[0-2][0-9]|6553[0-5]|))? (((\/(([a-zA-Z0-9_\-\%\~\+\&\;]{1,})+)*)*)|\/$)? (\.(php|html|htm|zip$|arj$|rar$|sit$|pdf$|gif$|jpg$|jpeg$|jpe$|tif$|tiff$))? (\?([a-zA-Z0-9_\-]+\=[a-z-A-Z0-9_\-\%\~\+]+)?(\&([a-zA-Z0-9_\-]+\=[a-z-A-Z0-9_\-\%\~\+]+))*)? (\=\?([a-zA-Z0-9_\-])*)?(((\+([a-zA-Z0-9_])*)?(\-([a-zA-Z0-9_])*)?)*)? (\#([a-z-A-Z0-9_\-\%\~\+\&\;]*$))?$
Description	A regular expression which allows to find most of valid URL's and it is including some picture or packing-format prefixes at the end of an URL. sorry but www.test.com.php is working too, maybe someone could give me a tip for a workaround.
Matches	www.test.com|www.test.com#anker|http://www.test.info|242.240.12.24:65535|sub.test.6x.to/dir/file.php?test=test&test2=test2|www.mytest.com/sleep&search=?good+fine etc.
Non-Matches	www.mytest.xxx|242.240.12.24:65536
Author	Rating: Not yet rated. Thomas Buettner

Title	Test Details URL
Expression	^(\w+)s?\:\/\/(\w+)?(\.)?(\w+)?\.(\w+)$
Description	http://www.url.com || http://url.com || http://first.url.com || https://www.url.com || https://url.com
Matches	http://www.url.com | http://url.com | http://first.url.com | https://www.url.com | https://url.com
Non-Matches	http://.com
Author	Rating: Kumar Deepak Ranjan

Title	Test Details URL v2
Expression	^(\w+)s?[:]\/\/(\w+)?[.]?(\w+)[.](\w+)$
Description	http://www.url.com || http://url.com || http://first.url.com || https://www.url.com || https://url.com
Matches	http://www.url.com | http://url.com | http://first.url.com | https://www.url.com | https://url.com
Non-Matches	http://.com
Author	Rating: Not yet rated. Kumar Deepak Ranjan

Title	Test Details Pseudo-HTML, Gets [a] Tag based on [] nomeclature with url parameter
Expression	(\[a url=\"[^\[\]\"]*\"\])([^\[\]]+)(\[/a\])
Description	Matches well-formed tags.
Matches	[a url="http://www.example-domain.com"]link text[/a]; [a url=""]link text[/a]
Non-Matches	[a]link text[/a]; [a url= ""]link text[/a]
Author	Rating: Not yet rated. Roberto Santana

Title	Test Details Gets an HTML parameter value of a given Tag. url in this case.
Expression	url=\"([^\[\]\"]*)\"
Description	Very useful to get a value, Value is in a capture group for best handling.
Matches	url=""; url="http://www.example.eu"; url="ftp://ftp.example.com"
Non-Matches	url =""; url = ""
Author	Rating: Roberto Santana

Title	Test Details Domain URL
Expression	^(http\:\/\/(?:www\.)?[a-zA-Z0-9]+(?:(?:\-|_)[a-zA-Z0-9]+)*(?:\.[a-zA-Z0-9]+(?:(?:\-|_)[a-zA-Z0-9]+)*)*\.[a-zA-Z]{2,4}(?:\/)?)$
Description	A URL to a domain name. Only for http but that can be changed easily to accept more. the dashes and undescores can only be used between text and/or digits. The slash on the end is optional
Matches	http://www.website.com/ | http://my-website.net | http://another_site.org
Non-Matches	www.website.com | http://_website.com | http://www. web--site.com
Author	Rating: Ted Cambron

Title	Test Details URL Validation
Expression	^(ftp|https?):\/\/([^:]+:[^@]*@)?([a-zA-Z0-9][-_a-zA-Z0-9]*\.)*([a-zA-Z0-9][-_a-zA-Z0-9]*){1}(:[0-9]+)?\/?(((\/|\[|\]|-|~|_|\.|:|[a-zA-Z0-9]|%[0-9a-fA-F]{2})*)\?((\/|\[|\]|-|~|_|\.|,|:|=||\{|\}|[a-zA-Z0-9]|%[0-9a-fA-F]{2})*\&?)*)?(#([-_.a-zA-Z0-9]|%[a-fA-F0-9]{2})*)?$
Description	This pattern can be used to validate URLs starting with ftp, http or https
Matches	https://user:password@subdomain.domain.tld:80/~user/a_1/b.2//c%203/file.extension?query=string&with=various&param_eters&and=param,eters&with[]=brackets&and:colons&uniqid={21EC2020-3AEA-1069-A2DD-08002B30309D}
Non-Matches	http://domain.....tld
Author	Rating: Rafael de la Torre Consuegra

Title	Test Details URl Domain names
Expression	^http[s]?://([a-zA-Z0-9\-]+\.)*([a-zA-Z]{3,61}|[a-zA-Z]{1,}\.[a-zA-Z]{2})/.*$
Description	Used for matching a URL and can be used for extracting the domain name from a given URL ending with '/'. Concat $2 and $3 to get the domain name.
Matches	http://www.google.com/;http://google.com/;http://code.google.com/;http://google.co.uk/;http://tx.us/
Non-Matches	http://www.google.com;
Author	Rating: Not yet rated. buzzooka

Title	Test Details Specific Top-Level Domain (TLD)
Expression	^.*(yourdomain.com).*$
Description	Matches the TLD of a given domain (replace yourdomain.com with whatever domain you're trying to enforce). I was writing an web application in which I wanted to to display a special message to visitors if and only if they were referred to my site by one specific site. However, because the specific site in question was highly dynamic, referring URLs were all over the place in terms of consistency and the only thing I knew I could count on 100% was the TLD (subdomains and file paths acceptable, so long as the TLD matches exactly).
Matches	yourdomain.com | http://www.yourdomain.com | http://subdomain.yourdomain.com/pages/manage/?act=4015876&ag=709254588456a
Non-Matches	your-domain.com | ourdomain.com | yourdomain.co
Author	Rating: Matt Finazzo

Title	Test Details Simple URL
Expression	^(http(s?):\/\/)(www.)?(\w|-)+(\.(\w|-)+)*((\.[a-zA-Z]{2,3})|\.(aero|coop|info|museum|name))+(\/)?$
Description	Matches simple root website URLs. Https and some new domains supported.
Matches	http://www.google.com, http://www.google.co.uk, http://images.google.ie
Non-Matches	www.google.com, http://www.google
Author	Rating: Francisco Grau

Title	Test Details Valid URL without protocol
Expression	^([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$
Description	Use this expression to check that a valid web address is used without any protocol.
Matches	www.myurl.com | myurl.com/default.aspx?i=id | www3.myurl.com/?a
Non-Matches	www.my url.com | myurl.com/default.aspx?i=1 2 3 | www3.myurl.com?a | http://myurl.com
Author	Rating: Craig Palenshus

Title	Test Details Match unanchored urls in unstructured text
Expression	\b((?<!["'>])(?:https?://)?(?<![-@>])(?:[a-z0-9](?:[-a-z0-9]*[a-z0-9])\.)+(?:com|org|net|gov|mil|biz|info|name|aero|mobi|jobs|museum|[A-Z]{2})(?:/[-A-Z0-9\/_.]+)?(?:\?[-A-Z0-9&\._%=,]+)?(?!['"<]))\b
Description	Use this regex to match urls (including folder, file and querystring) in unstructured text that are not in anchor tags. Replace with <a href="$1">$1</a> to create anchor tags.
Matches	www.shschools.org/community/ethics_conference.html?s=keyword
Non-Matches	<a href="www.shschools.org/community/ethics_conference.html?s=keyword">www.shschools.org/community/ethics_conference.html?s=keyword</a>
Author	Rating: Bob Clark

Title	Test Details Rapidshare.com Urls
Expression	/rapidshare\.com\/files\/(\d+)\/([^\'^\"^\s^>^<^\\^\/]+)/
Description	matches all rapidshare.com links /files / 8 numbers / filename
Matches	http://rapidshare.com/files/61674290/somefile.rar | http://rapidshare.com/files/61674290/somefile2.rar | http://rapidshare.com/files/61674290/Shrek.The.Third_GG_SG_.part1.rar
Non-Matches	--
Author	Rating: Not yet rated. Robert Pitt

Title	Test Details URL Parsing
Expression	(?:(?<scheme>[a-zA-Z]+)://)?(?<domain>(?:[0-9a-zA-Z\-_]+(?:[.][0-9a-zA-Z\-_]+)*))(?::(?<port>[0-9]+))?(?<path>(?:/[0-9a-zA-Z\-_.]+)+)(?:[?](?<query>.+))?
Description	Separates a URL into components viz. schema, domain, port, path and query. Avoids unnecessary numbered groups caused by braces.
Matches	http://www.google.com/cgi/search?hl=en&q=RegEx+Library&btnG=Google+Search&meta= | ftp://ftp.google.com:21/Files/Data.zip | http://www.google.com:80/cgi/search?hl=en&q=RegEx+Library&btnG=Google+Search&meta=
Non-Matches	http:/www.google.co.za:80/cgi/search?hl=en&q=RegEx+Library&btnG=Google+Search&meta= | http://www.google.co.za?80/cgi/search?hl=en&q=RegEx+Library&btnG=Google+Search&meta= | http://www.google.co.za:80/cgi/search/hl=en&q=RegEx+Library&btnG=Google+Search&meta=
Author	Rating: Not yet rated. Raje

Title	Test Details Parse linked url
Expression	((?<html>(href|src)\s*=\s*")|(?<css>url\())(?<url>.*?)(?(html)"|\))
Description	Given HTMl or CSS source, find the value of all href and src attributes + anything between url().
Matches	href="foo"|scr="foo"|url(foo)
Non-Matches	href(foo)|src(foo)|url="foo"
Author	Rating: Tinminator

Title	Test Details Anchor Href Link URL
Expression	href=(?<QUOTE>[\""\'])?(?<URL>(?<SCHEME>(file|ftp|http|https|news|nntp):\/\/|mailto\:)?(?<EMAIL>[\w-]+@)?(?<HOST>(?(SCHEME)[\w]+(\.[\w-]+)*?))(?<PATH>\/?\w*[\w-%\:\.\+\/]+)?(?<QUERY>\?[\w-%\+:\.]*(=[\w-%\+:\.]*)?(&[\w-%\+\:\.]*(=[\w-%\+:\.]*)?)*)?(?<ANCHOR>\#[\w-%\+:\.]+)?)(?<-QUOTE>[\""\'])?(?#VALIDATE QUOTES/URL)(?(PATH)|(?(SCHEME)|(?!)))(?(QUOTE)(?!))
Description	Matches href links / URLS within html and separates out the Scheme, Email, Domain, Path, Query, Anchor and the full URL. Based on Andrew Lee's version with some further tweaking.
Matches	href="mailto:text@example.com" | href="www.example.com" | href="https://localhost/bla-h3/?x%20#test1" | href='eek' | href="ftp://127.0.0.1/" | href="http://example.com/Search.aspx?k=href&c=-1&m=-1&ps=%20" | href=example.com | href="http://www.example.com/search?q=pi+day&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a#sx"
Non-Matches	href="" | href= | href="javascript: testMe();" | href="bad example"
Author	Rating: Eric Bouwsema

Title	Test Details URI Validation
Expression	if(!isValidURL($_POST['url']){ echo "do something"; }
Description	function isValidURL($url) { $protocol = "((http|ftp|https):\/\/)?"; $domain = "([[:alpha:]][-[:alnum:]]*[[:alnum:]])(\.[[:alpha:]][-[:alnum:]]*[[:alpha:]])+"; $dir = "(/[[:alpha:]][-[:alnum:]]*[[:alnum:]])*"; $page = "(/[[:alpha:]][-[:alnum:]]*\.[[:alpha:]]{3,5})?"; $getstring = "(\?([[:alnum:]][-_%[:alnum:]]*=[-_%[:alnum:]]+)(&([[:alnum:]][-_%[:alnum:]]*=[-_%[:alnum:]]+))*)?"; $pattern = "^".$protocol.$domain.$dir.$page.$getstring."$"; return eregi($pattern, $url); } //----------------- Be sure to put each variable ($protocol, $domain, $dir, $page, $getstring, $pattern, and 'return') on separate line!
Matches	www.google.co.uk | www9.g-88gle.co.uk | http://path1/to-page | http://phpinfo.php
Non-Matches	9ww.google.3o.uk | www.google4.co.uk3 | http://path1-/2-page | http://phpinfo.php4
Author	Rating: Ardjuna Pandu