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 14,880 community submitted regex patterns...
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
-
8 years ago
10
IPv4 Validator
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
4 years ago
(Last modified 9 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
17
Email (RFC2822)
Recommended
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
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
-
9 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)
25
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
-
9 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 9 months ago)
24
Cron schedule
Recommended
PCRE (PHP <7.3)
Validate cron lines (even the ones commented out)
Submitted by
anonymous
-
8 years ago
10
best youtube id match ( iframe embed replace ready )
Recommended
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
-
5 years ago
31
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
-
6 years ago
(Last modified 10 months ago)
1
...
742
743
744
extract data syslog format
0
Regular Expression
Python
r"
ticky:
(
INFO
|
ERROR
)
(
:
[
\w\W
$
]
+
?
)
(
\(
[
\w
]
*
\)
)
"
gm
Open regex in editor
Description
Extract data of syslog.log format
Submitted by
anonymous
-
a year ago