Regular Expressions 101

Order By

Filter by Flavor

Sponsors

There are currently no sponsors. Become a sponsor today!

Community Patterns

Search among 18,020 community submitted regex patterns...

20

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

30

Cron schedule

PCRE (PHP <7.3)

Validate cron lines (even the ones commented out)

Submitted by anonymous - 8 years ago

13

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

34

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)

19

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)

11

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)

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)

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

10

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

12

Find Reddit Threads

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

Submitted by Mio - 10 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)

11

UUID

ECMAScript (JavaScript)

no description available

Submitted by anonymous - 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

6

Find and extract email domain

Find and extract email domain. Ex: test@example.pt -> extract 'example.pt'

Submitted by Fnxk - 9 years ago

10

entity

no description available

Submitted by anonymous - 9 years ago

1 2 3...901

Community Library Entry

16

Regular Expression
ECMAScript (JavaScript)

/

#\w+

/

g

Open regex in editor

Description

The secret of the Twitterverse.

Submitted by Joogl - 10 years ago