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 11,800 community submitted regex patterns...
1
Polynomial extractor with real coefficient
PCRE2 (PHP >=7.3)
It matches any polynomial with integer or real coefficient
Submitted by
eFrim
-
a month ago
(Last modified a month ago)
1
groupping by :#
PCRE2 (PHP >=7.3)
sed 's/\(:#\)./ -CLEARED-/g'
Submitted by
anonymous
-
a month ago
1
happy birthday
PCRE2 (PHP >=7.3)
match hbds
Submitted by
anonymous
-
a month ago
1
Regex to catch prices
PCRE2 (PHP >=7.3)
(faturou\s|faturamento de\s|faturei\s|de um faturamento )(mais\sde\s)(((((R\$)+(\s)(\d){1,6}(\s)((\.|\,)\d{1,3}|k|mil))))+|((de\s(\d){1,3}(k|mil)\spara\s(\d){1,3}(k|mil)))+)(\sde\sfaturamento)(\sem\s(menos\sde\s)(\d{1,2})\sdias)(\sfoi o que a minha (aluna|cliente|mentoranda|mentorada)+ faturou)(\sap...
Submitted by
Leonardo Paris
-
2 months ago
1
camelCase -> snake_case
PCRE2 (PHP >=7.3)
Works with many forms of alphanumeric camelCase camelCase camel camelCaseCaseCase... (with as many words as you want) ca65melCase (ca65mel_case) camelCCase (camel_c_case)...
Submitted by
inesvar
-
2 months ago
1
PascalCase -> snake_case
PCRE2 (PHP >=7.3)
Works with many forms of alphanumeric PascalCase PascalCase Pascal PascalCaseCase Pascal684Case (pascal684_case) Pas45calCase (pas45cal_case)...
Submitted by
inesvar
-
2 months ago
1
simple email validator
PCRE2 (PHP >=7.3)
Email address validator
Submitted by
anil
-
2 months ago
1
homework 1
PCRE2 (PHP >=7.3)
this is the answer for question 1
Submitted by
Christian Thrige Nielsen
-
2 months ago
1
Remove multiple forward slash from url
PCRE2 (PHP >=7.3)
(): This is a capturing group that matches any character except a colon :, and it captures this character for later use in the replacement. (/ {2,}): This part matches two or more consecutive forward slashes. The replacement part $1/ uses the captured character from the first part (which is any char...
Submitted by
Apon Ahmed
-
2 months ago
(Last modified 2 months ago)
1
Credit card regex
PCRE2 (PHP >=7.3)
Credit card name and surname with turkish char
Submitted by
anonymous
-
2 months ago
0
PLP redirection
PCRE2 (PHP >=7.3)
PLP redirection
Submitted by
anonymous
-
2 months ago
1
Regex to Match Regular Expression in JS/TS
PCRE2 (PHP >=7.3)
Matches regular expressions in JS/TS (EcmaScript) code including none or one of the flags g, i`, m, u, y`.
Submitted by
Redu
-
2 months ago
1
Match Single Line (//) Comments in JSON
PCRE2 (PHP >=7.3)
Doesn't get confused by the url values like "https://www.example.com" or "file:///some.txt"
Submitted by
Redu
-
2 months ago
(Last modified 2 months ago)
1
username_unix.gamesave
PCRE2 (PHP >=7.3)
for username_unix.gamesave
Submitted by
anonymous
-
2 months ago
1
Estract download speed from Ookla Speedtest output
PCRE2 (PHP >=7.3)
surely can be optimized more, but it does the job and the interested number of lines is fairly low.
Submitted by
anonymous
-
2 months ago
1
111
PCRE2 (PHP >=7.3)
((?:[零一二三四五六七八九十百]+))$
Submitted by
anonymous
-
2 months ago
1
IANA Media Type
Java 8
Parses an IANA Media Type value. Doesn't seem to capture repeating parameters, which is a bit of an edge case but valid I think - any suggestions on how to fix would be appreciated.
Submitted by
scottbdr
-
2 months ago
1
loyal
PCRE2 (PHP >=7.3)
loyal
Submitted by
anonymous
-
2 months ago
1
named capture
PCRE2 (PHP >=7.3)
simple named capture
Submitted by
Gene
-
2 months ago
1
ipmitool sensor
PCRE2 (PHP >=7.3)
Parse stdout from ipmitool sensor
Submitted by
anonymous
-
2 months ago
(Last modified 2 months ago)
1
2
3
4
5
...
590
IP Address
0
Regular Expression
Java 8
"
^
(
(?:
[
01
]
[
0
-
9
]
{0,2}
|
(?:
2
(?:
5
[
0
-
5
]
{0,1}
|
[
0
-
4
]
[
0
-
9
]
{0,1}
|
[
6
-
9
]
{0,1}
)
)
|
[
3
-
9
]
[
0
-
9
]
{0,1}
)
\.
){3}
(?:
[
01
]
[
0
-
9
]
{0,2}
|
(?:
2
(?:
5
[
0
-
5
]
{0,1}
|
[
0
-
4
]
[
0
-
9
]
{0,1}
|
[
6
-
9
]
{0,1}
)
)
|
[
3
-
9
]
[
0
-
9
]
{0,1}
)
$
"
gm
Open regex in editor
Description
IP Address RegEx
Submitted by
anonymous
-
2 years ago