Please enable JavaScript to use this web application.
Regular
Expressions
101
Social
Donate
Info
Regex Editor
Community Patterns
Account
Regex Quiz
Settings
Order By
Most Recent
Highest Score
Lowest Score
Most upvotes
Most downvotes
Filter by Flavor
PCRE2 (PHP >=7.3)
PCRE (PHP <7.3)
ECMAScript (JavaScript)
Python
Golang
Java 8
.NET 7.0 (C#)
Rust
Sponsors
There are currently no sponsors.
Become a sponsor today!
Community Patterns
Search among 14,900 community submitted regex patterns...
236
Matching email addresses per RFC5322
PCRE (PHP <7.3)
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
-
11 years ago
483
regex101.com permalink id grabber
PCRE (PHP <7.3)
Grabs the ID for the regex101.com permalink code. If a revision number is provided, grab that as well.
Submitted by
chris mccoy
-
10 years ago
(Last modified a month ago)
9
Fixo LDN CSP e SEM CSP
PCRE (PHP <7.3)
no description available
Submitted by
Marcos Müller
-
10 years ago
14
us postal/zip
ECMAScript (JavaScript)
no description available
Submitted by
jay johnson
-
10 years ago
13
US Currency Format
ECMAScript (JavaScript)
no description available
Submitted by
anonymous
-
8 years ago
81
Distinguish torrent files (series vs movies)
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 prev...
Submitted by
Firas Dib
-
10 years ago
(Last modified 10 months ago)
11
remove comments from php code
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
9 years ago
8
extract subdomain(if available) or domain from URL
Python
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
-
8 years ago
10
Find Reddit Threads
Python
Simply searches for the thread-id in any kind of valid reddit-URL.
Submitted by
Mio
-
9 years ago
10
entity
Python
no description available
Submitted by
anonymous
-
9 years ago
10
IPv4 Validator
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
4 years ago
(Last modified 10 months ago)
24
grab valid css rules and properties
ECMAScript (JavaScript)
no description available
Submitted by
Pavel Dominguez
-
9 years ago
7
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
11
youtube url match
ECMAScript (JavaScript)
extract video id, index, play list id from youtube url
Submitted by
anonymous
-
9 years ago
18
Email (RFC2822)
Recommended
ECMAScript (JavaScript)
Email address compliant with RFC2822
Submitted by
Jago
-
9 years ago
9
Fiddler raw body to PHP array
PCRE (PHP <7.3)
no description available
Submitted by
garsax
-
8 years ago
9
CSS Color Matcher
ECMAScript (JavaScript)
Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/
Submitted by
Kyza
-
10 months ago
14
RFC3339 DateTime
Recommended
PCRE (PHP <7.3)
Validates a RFC3339 DateTime format. Does not validates the Data
Submitted by
anonymous
-
8 years ago
10
Conventional Commits validation
PCRE (PHP <7.3)
This regex prevents the writing of non-standard conventional commits. I'm available on my github
Submitted by
Krisque
-
2 years ago
(Last modified 10 months 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/
-
5 years ago
(Last modified 10 months ago)
1
...
742
743
744
745
Search for foobar in a csv string
0
Regular Expression
PCRE (PHP <7.3)
/
(?:
^
|
\,
{1,}
)
(
foobar
)
(?:
$
|
\,
{1,}
)
/
g
Open regex in editor
Description
Search for foobar in a csv string
Submitted by
Balmark
-
9 years ago