Regular Expressions 101

Order By

Filter by Flavor

Sponsors

There are currently no sponsors. Become a sponsor today!

Community Patterns

Search among 18,000 community submitted regex patterns...

19

best youtube id match ( iframe embed replace ready )

PCRE (PHP <7.3)

MATCH ANY YOUTUBE ID author : mi-ca v1.0 – 2017.03.08 This Regex match any youtube url and grab the ID. Embed ready √ --...

Submitted by mi-ca.ch - 6 years ago

29

Cron schedule

PCRE (PHP <7.3)

Validate cron lines (even the ones commented out)

Submitted by anonymous - 8 years ago

12

CSS Color Matcher

ECMAScript (JavaScript)

Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/

Submitted by Kyza - a year ago

32

Strict Password Validator

ECMAScript (JavaScript)

This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number...

Submitted by qho - 7 years ago (Last modified a year ago)

27

Parsing browser User Agents

PCRE (PHP <7.3)

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

Submitted by OnlineCop - 10 years ago (Last modified a year ago)

18

Get path from any text

PCRE2 (PHP >=7.3)

Get path (windows style) from any type of text (error message, e-mail corps ...), quoted or not. THIS IS THE SINGLE LINE VERSION !_ If you want understand how it work or edit it, go https://regex101.com/r/7o2fyy Relative path are not supported...

Submitted by nitrateag - 2 years ago (Last modified a year ago)

10

Conventional Commits validation

This regex prevents the writing of non-standard conventional commits. I'm available on my github

Submitted by Krisque - 3 years ago (Last modified 3 years ago)

14

RFC3339 DateTime

PCRE (PHP <7.3)

Validates a RFC3339 DateTime format. Does not validates the Data

Submitted by anonymous - 9 years ago

9

Fiddler raw body to PHP array

PCRE (PHP <7.3)

no description available

Submitted by garsax - 9 years ago

8

IP Address (with 0s)

ECMAScript (JavaScript)

Matches all valid IP addresses from 0.0.0.0 to 255.255.255.255

Submitted by Ryan Plummer - 9 years ago

19

Email (RFC2822)

ECMAScript (JavaScript)

Email address compliant with RFC2822

Submitted by Jago - 9 years ago

11

youtube url match

ECMAScript (JavaScript)

extract video id, index, play list id from youtube url

Submitted by anonymous - 9 years ago

15

Email regex validation

ECMAScript (JavaScript)

RegEx email /^((?!\.)[\w-_.]*)(@\w+)(\.\w+(\.\w+)?)$/gim; Just playing with Reg Ex. This to validate emails in following ways ...

Submitted by https://www.linkedin.com/in/peralta-steve-atileon/ - 6 years ago (Last modified a year ago)

9

extract subdomain(if available) or domain from URL

This regex should extract the subdomain, if any, or the domain, if no subdomain is used, from an arbitrary URL

Submitted by trevi@twanda.com - 9 years ago

11

UUID

ECMAScript (JavaScript)

no description available

Submitted by anonymous - 10 years ago

11

Find Reddit Threads

Simply searches for the thread-id in any kind of valid reddit-URL.

Submitted by Mio - 10 years ago

11

IPv4 Validator

PCRE (PHP <7.3)

no description available

Submitted by anonymous - 4 years ago (Last modified a year ago)

25

grab valid css rules and properties

ECMAScript (JavaScript)

no description available

Submitted by Pavel Dominguez - 9 years ago

10

entity

no description available

Submitted by anonymous - 9 years ago

15

us postal/zip

ECMAScript (JavaScript)

no description available

Submitted by jay johnson - 11 years ago

1 2 3...900

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/

(E1E\w{4,5})-(\d{2,3})-(\d{2,3});("(\w{1,3})\W*\n(E1E\w{4,5})-(\d{2,3})-(\d{2,3})[^"]+")?

/

g

Open regex in editor

Description

no description available

Submitted by anonymous - 8 years ago