regex101: URL Validation

485

regex101.com permalink id grabber

Created·2013-12-12 13:09

Updated·2024-04-11 14:32

Flavor·PCRE (Legacy)

Grabs the ID for the regex101.com permalink code. If a revision number is provided, grab that as well.

Submitted by chris mccoy

238

Matching email addresses per RFC5322

Created·2013-10-23 17:46

Flavor·PCRE (Legacy)

The BNF rules from RFC 5322 transformed to PCRE by Nikita Popov and described in the post http://nikic.github.io/2012/06/15/The-true-power-of-regular-expressions.html.

Submitted by Michael Musson

41

URL regexp

Created·2013-01-14 17:52

Flavor·PCRE (Legacy)

A quite neat regular expression for URLs, e-mails..., I found on Matthew O'Riordan's blog.

Submitted by Matthew O'Riordan

19

Date: DD-MM-YYYY hh:mm:ss

Created·2013-05-17 13:07

Flavor·PCRE (Legacy)

Recommended·

Validate and capture dateTime parts, includes validation for leap years, range 1000-2999. Fixed bug

Submitted by Ka.

35

http://

Created·2014-03-26 06:44

Flavor·PCRE (Legacy)

no description available

Submitted by Mitus M.

53

Disorted Email Addresses

Created·2013-01-16 14:11

Flavor·PCRE (Legacy)

Matches distorted email addresses and converts them back to real ones.

Submitted by dislick

83

Distinguish torrent files (series vs movies)

Created·2014-06-26 09:59

Updated·2023-07-20 15:08

Flavor·Python

A neat regex for finding out whether a given torrent name is a series or a movie. Returns the full name of the series with the separator needed to make it pretty (ie, replace it with space or what you want). Also returns the season number or the year for the movie/series, depending on what was previously matched.

Submitted by Firas Dib

18

Email validation

Created·2014-09-16 13:45

Flavor·PCRE (Legacy)

no description available

Submitted by tutsplus.com

16

Alphanumeric Regex

Created·2015-06-15 13:57

Flavor·PCRE (Legacy)

no description available

Submitted by Deepan

4

Phone number

Created·2015-06-23 19:15

Flavor·PCRE (Legacy)

no description available

Submitted by Mark Landry

26

match valid JSON

Created·2014-11-17 20:47

Flavor·PCRE (Legacy)

Matches any valid JSON object, matches recursively. Passes all JSON test cases I found.

Submitted by Mateon1

23

userName

Created·2015-06-06 08:00

Flavor·PCRE (Legacy)

1-15 alphanumeric login name

Submitted by gsanchezc

29

CSV line parsing

Created·2014-10-15 13:22

Flavor·PCRE (Legacy)

Captures all fields from a CSV file's line. Can be customized with user-defined field separator and protecting character.

Submitted by Various

31

ninite

Created·2015-09-29 11:28

Flavor·PCRE (Legacy)

no description available

Submitted by peek

13

URL Validator

Created·2014-09-24 08:41

Flavor·PCRE (Legacy)

Validates - URLs with schemes - http, https and ftp Relative URL starting with / and ../

Submitted by anonymous

29

Wrap long string to spec length

Created·2013-07-21 20:34

Flavor·PCRE (Legacy)

no description available

Submitted by fullpipe

9

Youtube ID match

Created·2013-11-28 13:30

Flavor·PCRE (Legacy)

This regex will match any Youtube video ID thrown at it and return one capturing group containing the ID.

Submitted by Jacob Overgaard

3

Match quoted strings, ignoring escaped quotes

Created·2013-06-26 14:28

Flavor·PCRE (Legacy)

Matches single or double quoted strings, and ignores backslash-escaped quotes within the string.

Submitted by Maddingue

22

UK Postcode Checker

Created·2014-10-21 08:23

Flavor·PCRE (Legacy)

Checks for valid UK/British postcodes. There was another on here that had for some reason been upvoted, but it was actually incorrect as it worked on none of my valid own postcodes! Namely that it assumed two letters and a number (BS3) when you can have variations (M20). Allows for an optional space and separates the two parts into groups.

Submitted by MaffooBristol

13

regex101.com id grabber

Created·2014-08-19 16:10

Flavor·PCRE (Legacy)

grabs the ID for the regex101.com permalink to code

Submitted by chris mccoy

37

best youtube id match ( iframe embed replace ready )

Created·2019-03-12 16:17

Flavor·PCRE (Legacy)

Recommended·

Submitted by mi-ca.ch

37

Cron schedule

Created·2016-06-02 15:45

Flavor·PCRE (Legacy)

Recommended·

Validate cron lines (even the ones commented out)

Submitted by anonymous

11

Date(Including Leap Year) YYYY-MM-DD hh:mm:ss

Created·2014-03-14 16:49

Flavor·PCRE (Legacy)

Validates DateTime of format YYYY-MM-DD hh:mm:ss including Leap Year

Submitted by Madhan

0

URL matching

Created·2014-07-02 06:34

Flavor·PCRE (Legacy)

Complete url matching with storage of various parameters

Submitted by hjpotter92

20

Between tags content

Created·2015-10-24 10:52

Flavor·PCRE (Legacy)

no description available

Submitted by Agustín Bouillet

1

Validate alphanumeric and numeric range

Created·2014-09-22 09:13

Flavor·PCRE (Legacy)

For Validating alphanumeric and numeric range

Submitted by anonymous

32

Parsing browser User Agents

Created·2015-01-23 16:47

Updated·2023-07-19 08:36

Flavor·PCRE (Legacy)

From a (fairly large) list of User Agent strings, extract the OS, Browser, and Device Type.

Submitted by OnlineCop

9

only numbers

Created·2015-11-26 16:19

Flavor·PCRE (Legacy)

A string with only numbers in

Submitted by Gotts

13

PHP variable name

Created·2013-02-05 09:18

Flavor·PCRE (Legacy)

Valid PHP variable name as defined in the manual at http://php.net/manual/en/language.variables.basics.php

Submitted by Erin Millard

3

phone

Created·2015-05-07 17:14

Flavor·Python

matches: + example: +52 33 3884 7720 +1 770 343 5788

Submitted by miqui

9

Extract Protocol, URL, URL Path, get parameters and hash from URI

Created·2014-05-22 23:34

Flavor·Python

This is simplified from my last submission.

Submitted by Dale O'Brien

18

Date Regex(DD/MM/yyyy)

Created·2015-08-26 06:25

Flavor·PCRE (Legacy)

no description available

Submitted by alcaamado

17

Capture comma separated numbers

Created·2015-07-19 01:57

Flavor·PCRE (Legacy)

Capture comma separated numbers, no matter if there are spaces before or after the commas.

Submitted by Fernando Nunes

15

IPv4

Created·2015-12-17 08:14

Flavor·PCRE (Legacy)

no description available

Submitted by robwa

6

Matching balanced parens, brackets, and braces

Created·2013-09-29 18:23

Flavor·PCRE (Legacy)

no description available

Submitted by Noah Luck Easterly

13

Match Gmail Email

Created·2014-11-20 23:58

Flavor·PCRE (Legacy)

Recommended·

Match Gmail Email

Submitted by Ã“scar EnrÃquez

6

json

Created·2014-08-14 17:30

Flavor·PCRE (Legacy)

{1:aa,2:bb,3:"aa:bb"}

Submitted by suat & umut

11

Address Check Validation

Created·2014-01-30 13:56

Flavor·PCRE (Legacy)

Check for true or false street address format

Submitted by Dilip Borad

0

utf-8 language

Created·2015-09-15 13:13

Flavor·PCRE (Legacy)

this regex is support for all languages

Submitted by Jigar Dhaduk

12

Remove Special Ascii Characters from unicode String

Created·2015-03-12 11:00

Flavor·PCRE (Legacy)

By Using this string you can just remove ascii special characters from a unicode string characters like â™¥â™¥â™¥â™¥ â–“â–’ and other non unicode letters.

Submitted by Hummad Hassan

8

Validate Base64 single-line string

Created·2013-05-31 00:35

Flavor·PCRE (Legacy)

no description available

Submitted by ka.

1

IP Addresses

Created·2015-07-16 16:42

Flavor·PCRE (Legacy)

Matches IP Addresses with minimum false positives

Submitted by Austin-Hanson

9

domain - host

Created·2015-09-29 17:50

Flavor·Python

no description available

Submitted by anonymous

4

Element's Attribute Value in XML (simple)

Created·2014-06-24 11:29

Flavor·PCRE (Legacy)

Simple regular expression for extracting attribute value of the element in XML-string. Attribute value should be in quotes.

Submitted by Nikita Danilov

7

CSS Import

Created·2014-05-03 00:51

Flavor·Python

no description available

Submitted by anonymous

15

RFC3339 DateTime

Created·2016-02-12 11:44

Flavor·PCRE (Legacy)

Recommended·

Validates a RFC3339 DateTime format. Does not validates the Data

Submitted by anonymous

5

Separate words (works with spaces, dashes and underscores)

Created·2014-10-07 17:30

Flavor·PCRE (Legacy)

no description available

Submitted by marcoslhc

4

Remove HTML tags

Created·2014-10-01 08:36

Flavor·PCRE (Legacy)

This regex is used to remove HTML tag on string

Submitted by Jordane BACHELET

6

Username:Password

Created·2015-07-12 06:50

Flavor·PCRE (Legacy)

Regex For finding username:password

Submitted by Ghost

10

Strip Email ID from Name

Created·2014-11-24 22:41

Flavor·PCRE (Legacy)

Use this regex to select all characters up to the "" bracket. It works across multiple lines. You can get an email list with only the IDs. This is the pattern it matches: Alpha Person Step 1 (.*) $ Step 2 [$.$ gives you aperson@whatever.org

Submitted by Jonathan Davidar

Order By

Filter by Flavor

Community Patterns

regex101.com permalink id grabber

Matching email addresses per RFC5322

URL regexp

Date: DD-MM-YYYY hh:mm:ss

http://

Disorted Email Addresses

Distinguish torrent files (series vs movies)

Email validation

Alphanumeric Regex

Phone number

match valid JSON

userName

CSV line parsing

ninite

URL Validator

Wrap long string to spec length

Youtube ID match

Match quoted strings, ignoring escaped quotes

UK Postcode Checker

regex101.com id grabber

best youtube id match ( iframe embed replace ready )

Cron schedule

Date(Including Leap Year) YYYY-MM-DD hh:mm:ss

URL matching

Between tags content

Validate alphanumeric and numeric range

Parsing browser User Agents

only numbers

PHP variable name

phone

Extract Protocol, URL, URL Path, get parameters and hash from URI

Date Regex(DD/MM/yyyy)

Capture comma separated numbers

IPv4

Matching balanced parens, brackets, and braces

Match Gmail Email

json

Address Check Validation

utf-8 language

Remove Special Ascii Characters from unicode String

Validate Base64 single-line string

IP Addresses

domain - host

Element's Attribute Value in XML (simple)

CSS Import

RFC3339 DateTime

Separate words (works with spaces, dashes and underscores)

Remove HTML tags

Username:Password

Strip Email ID from Name