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 18,020 community submitted regex patterns...
0
Extract domain from URLs
ECMAScript (JavaScript)
no description available
Submitted by
anonymous
-
6 years ago
0
Consolidation Announcement Regex
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Semver matching regex
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
codescrew (not including strings)
Python
no description available
Submitted by
anonymous
-
6 years ago
0
regex search by element tag
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Parse alternative allele in VCF 4.1
PCRE (PHP <7.3)
Parse the ALT field (alternative allele) in VCF 4.1 format
Submitted by
panagiotis moulos
-
6 years ago
0
RegExp Mail
ECMAScript (JavaScript)
Mail address control with RegExp
Submitted by
Ahbap Aldırmaz
-
6 years ago
0
Parse alternative allele in VCF 4.2
PCRE (PHP <7.3)
Parse ALT field (alternative allele) in VCF 4.2 format
Submitted by
panagiotis moulos
-
6 years ago
0
Parse alternative allele in VCF 4.3
PCRE (PHP <7.3)
Parse ALT field (alternative allele) in VCF 4.3
Submitted by
panagiotis moulos
-
6 years ago
0
Grade with decimals
PCRE (PHP <7.3)
Hello everyone, With that regex expression, you can match the first grade with decimals on your string.
Submitted by
anonymous
-
6 years ago
0
date
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
IPv6 Reserved Blocks
PCRE (PHP <7.3)
Detects whether a given IPv6 string is within a reserved block, as defined on https://en.wikipedia.org/wiki/IPv6_address#Special_addresses Please note that this assume that the string given is already a valid IPv6 address - If IPv6 validation is important to you, please make sure you pass any strin...
Submitted by
Rohaq
-
6 years ago
0
Olsh
PCRE (PHP <7.3)
Olsh phishing
Submitted by
anonymous
-
6 years ago
0
Phishing
PCRE (PHP <7.3)
no description available
Submitted by
anonymous
-
6 years ago
0
Split output of $(ip addr) into individual interfaces
Python
no description available
Submitted by
anonymous
-
6 years ago
0
At least one uppercase lowercase special char and numer
ECMAScript (JavaScript)
no description available
Submitted by
anonymous
-
6 years ago
0
Negative lookup
ECMAScript (JavaScript)
It skips the whole line if it contains searched string
Submitted by
anonymous
-
6 years ago
0
校验登录名
ECMAScript (JavaScript)
只能输入5-20个以字母开头、可带数字、“_”、“.”的字串
Submitted by
anonymous
-
6 years ago
0
校验密码:只能输入6-20个字母、数字、下划线
ECMAScript (JavaScript)
Submitted by
anonymous
-
6 years ago
0
check the URL
ECMAScript (JavaScript)
Submitted by
anonymous
-
6 years ago
1
...
159
160
161
162
163
...
901
Community Library Entry
0
Regular Expression
Python
r"
^
(
[
a
-
zA
-
Z0
-
9
]
*
[
a
-
zA
-
Z
]
+
[
a
-
zA
-
Z0
-
9
]
*
\.
[
a
-
zA
-
Z0
-
9
]
*
\.
[
a
-
zA
-
Z0
-
9
]
*
|
[
a
-
zA
-
Z0
-
9
]
*
\.
[
a
-
zA
-
Z0
-
9
]
*
[
a
-
zA
-
Z
]
+
[
a
-
zA
-
Z0
-
9
]
*
\.
[
a
-
zA
-
Z0
-
9
]
*
|
[
a
-
zA
-
Z0
-
9
]
*
\.
[
a
-
zA
-
Z0
-
9
]
*
\.
[
a
-
zA
-
Z0
-
9
]
*
[
a
-
zA
-
Z
]
+
[
a
-
zA
-
Z0
-
9
]
*
)
(
~
|
\-
|
\+
){0,1}
[
a
-
zA
-
Z0
-
9
]
+
$
"
gm
Open regex in editor
Description
no description available
Submitted by
anonymous
-
6 years ago