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
Most upvotes
Most downvotes
Highest Score
Lowest Score
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 18,000 community submitted regex patterns...
0
Strong password
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
2 of a kind
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
IPv4 address
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
“Defanged” URL or IPv4 address
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
Assembler Instruction
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
ms-style-html
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
ms-style-txt
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
investigator_Name_Tier
Python
no description available
Submitted by
anonymous
-
5 years ago
0
Find first slash in path
PCRE (PHP <7.3)
no description available
Submitted by
#madeux
-
5 years ago
0
Find empty lines
PCRE (PHP <7.3)
no description available
Submitted by
#madeux
-
5 years ago
0
1d20 Regex
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
SemVer - Versioning RegEx
PCRE (PHP <7.3)
Source: https://semver.org Alternative: https://simversion.github.io
Submitted by
anonymous
-
5 years ago
0
SemVer - Versioning RegEx - Alternative (JavaScript)
ECMAScript (JavaScript)
Source: https://semver.org Alternative: https://simversion.github.io
Submitted by
anonymous
-
5 years ago
0
Hexadecimal value
PCRE (PHP <7.3)
Long and short hexadecimal values.
Submitted by
anonymous
-
5 years ago
0
Valid email address (RFC5322)
PCRE (PHP <7.3)
RFC5322 RFC6854 updates RFC5322
Submitted by
anonymous
-
5 years ago
0
CETATENIE
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
SERIA_SI_NR
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
NASCUT_DOMICILIU
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
MO
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
5 years ago
0
Pig Latin Tester
Python
A learning experience
Submitted by
anonymous
-
5 years ago
1
...
650
651
652
653
654
...
900
Community Library Entry
0
Regular Expression
ECMAScript (JavaScript)
/
^
(
0
|
[
1
-
9
]
\d
*
)
\.
(
0
|
[
1
-
9
]
\d
*
)
\.
(
0
|
[
1
-
9
]
\d
*
)
(?:
-
(
(?:
0
|
[
1
-
9
]
\d
*
|
\d
*
[
a
-
zA
-
Z-
]
[
0
-
9a
-
zA
-
Z-
]
*
)
(?:
\.
(?:
0
|
[
1
-
9
]
\d
*
|
\d
*
[
a
-
zA
-
Z-
]
[
0
-
9a
-
zA
-
Z-
]
*
)
)*
)
)?
(?:
\+
(
[
0
-
9a
-
zA
-
Z-
]
+
(?:
\.
[
0
-
9a
-
zA
-
Z-
]
+
)*
)
)?
$
/
gm
Open regex in editor
Description
Source:
https://semver.org
Alternative:
https://simversion.github.io
Submitted by
anonymous
-
5 years ago