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
Community Patterns
Search among 14,940 community submitted regex patterns...
483
regex101.com id grabber
PCRE (PHP <7.3)
grabs the ID for the regex101.com permalink to code
Submitted by
chris mccoy
-
10 years ago
(Last modified 8 months ago)
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
-
10 years ago
10
MikroTik FireWall
PCRE (PHP <7.3)
Regex used in Splunk to extract fields from Mikrotik FW. NOTES: Mikrotik must be configured to use "BSD Syslog" format FW rules must add, as log prefix, the action: drop accep...
Submitted by
HappyIdeasMaker
-
9 years ago
13
Credit Card Expiry Date
ECMAScript (JavaScript)
Allows inserting expiry date as MM/YYYY or MM-YYYY format
Submitted by
Rider
-
9 years ago
12
Full url parse, domain, path, params
ECMAScript (JavaScript)
no description available
Submitted by
anonymous
-
9 years ago
5
Find All Python imports
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
9 years ago
5
relative to absolute
PCRE (PHP <7.3)
relative to absolute
Submitted by
xp_prg
-
9 years ago
5
Quartz Cron Validation
PCRE (PHP <7.3)
http://stackoverflow.com/questions/2362985/verifying-a-cron-expression-is-valid-in-java
Submitted by
anonymous
-
9 years ago
5
Variable name of code
PCRE (PHP <7.3)
To get a variable name from a source code: The variable name is before the '=' (equal sign) This is the way to detect. Problem: Only 1 variable can get from 1 line. Unfortunately, this can get variable between after "//" and before ";" too. I made this for fake script debugger. Just get variable fr...
Submitted by
Setsuna
-
9 years ago
5
Codice fiscale italiano
PCRE (PHP <7.3)
Oltre a supportare le omocodie controlla in modo restrittivo il carattere relativo al mese di nascita
Submitted by
Aldo Medri
-
8 years ago
5
look for any $_POST['name']
PCRE (PHP <7.3)
if you are as lazy as me and want to replace every "=$_POST['name'];" using Dreamweaver or any development tool that allows using regular expressions to search in current file/document.
Submitted by
Kevinator
-
8 years ago
5
get specific value from html tag
PCRE (PHP <7.3)
no description available
Submitted by
A.ROA
-
8 years ago
7
[A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-][-\w]*
PCRE (PHP <7.3)
A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-*
Submitted by
[A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-][-\w]*
-
9 years ago
7
TimezoneOffset
ECMAScript (JavaScript)
used to parse timezone in the format -08:00 or +05:30
Submitted by
Neha
-
9 years ago
7
validate US (5 & 9 digit) ZipCodes and CA PostalCodes
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
9 years ago
7
simple email
ECMAScript (JavaScript)
no description available
Submitted by
anonymous
-
9 years ago
7
Extract currency with currency symbol if present
ECMAScript (JavaScript)
Extracts values of the form £nnn,nnn.nn or $nnn.nnn from text
Submitted by
Simon Gardner
-
9 years ago
7
Remove Widows (PHP)
PCRE (PHP <7.3)
Adds a non-breaking space between the last two words of sentences
Submitted by
herkulano
-
9 years ago
72
Regex for telephone numbers all over the world
Recommended
ECMAScript (JavaScript)
Detects most of the phone numbers all over the world
Submitted by
Aditya Joshi
-
10 years ago
(Last modified 6 months ago)
36
IP Address validator
ECMAScript (JavaScript)
Validates IPv4 IP Address
Submitted by
krzysp
-
9 years ago
1
2
3
4
...
747
Email address (most used)
31
Regular Expression
ECMAScript (JavaScript)
/
^
(
[
\w
-
]
+
(?:
\.
[
\w
-
]
+
)*
)
@
(
(?:
[
\w
-
]
+
\.
)*
\w
[
\w
-
]
{0,66}
)
\.
(
[
a
-
z
]
{2,6}
(?:
\.
[
a
-
z
]
{2}
)?
)
$
/
i
Open regex in editor
Description
Email address, most used cases
Submitted by
Jago
-
9 years ago