Regular
Expressions
101
Please wait while the app is loading...
Please enable JavaScript to use this web application.
Regular
Expressions
101
@regex101
Donate
Sponsor
Contact
Bug Reports & Feedback
Wiki
What's new?
What's new?
Loading content...
Close
Regex Editor
Regex Editor
Regex Library
Regex Library
Account
Account
Regex Quiz
Regex Quiz
Settings
Settings
Live Help
Live Help
Order By
Most Recent
Most Points
Fewest Points
Filter by Flavor
PCRE2
PCRE
ECMAScript
Python
Golang
Java
.NET
Sponsors
All your environment variables, in one place
Library entries
Search library
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Minecraft Crashlog Mod Errored
Use this to find wich mods (in Minecraft, Forge) errored out in the Crashlog
Submitted by
anonymous
-
8 years ago
2
2 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
python
Argentine postal code validation
validation for Argentina postal codes, previous four digits + new CPA
Submitted by
jpaulini
-
8 years ago
0
2 upvotes, 2 downvotes (50% like it) (You must be signed in to vote)
javascript
URL Query String Parser
Parses a URL query string (ignores anything after #) and returns parameters and values separately.
Submitted by
Ross Tracy
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
URL Parameters & Values
Returns matches of parameter and value separately from a URL. Ignores anything after a #.
Submitted by
Ross Tracy
-
8 years ago
2
3 upvotes, 1 downvotes (75% like it) (You must be signed in to vote)
python
SED
no description available
Submitted by
anonymous
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Akamai Logs
Akamai Logs
Submitted by
wzr
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Parse Entire URL
This regex is a mashup that strips protocol, domain and URI into seperate capture groups.
Submitted by
Robert Kozora
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Detect Adobe Edge file
no description available
Submitted by
gerezs
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
Funy error
no description available
Submitted by
anonymous
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Asian characters
Detects hiragana, katakana, kanji and japanese alphabet
Submitted by
anonymous
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
Get the city name from combined zip code and city input
Suitable for countries with a combination of
Submitted by
Nils
-
8 years ago
-1
0 upvotes, 1 downvotes (0% like it) (You must be signed in to vote)
javascript
Extract the city from zip code and city input
no description available
Submitted by
Nils Butenschön
-
8 years ago
0
1 upvotes, 1 downvotes (50% like it) (You must be signed in to vote)
pcre
remove empty html paragraph tags
no description available
Submitted by
acor3
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Dutch Zip Code Checker
/^1-9{3} ?(?!sa|sd|ss)[a-z]{2}$/i
Submitted by
Steven Moseley
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Email
Find a bunch of different types of email with this RegEx
Submitted by
anonymous
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
javascript
Word separator
This regexp can be used to separate words in common text.
Submitted by
Rafael Salazar
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Find integer in quotes
no description available
Submitted by
anonymous
-
8 years ago
2
2 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
GHS - PF LIMIT EXTRACTOR
Extracts from a PF file the summary table from the RAH command
Submitted by
anonymous
-
8 years ago
1
1 upvotes, 0 downvotes (100% like it) (You must be signed in to vote)
pcre
Filter Titles from 2b
no description available
Submitted by
anonymous
-
8 years ago
4
7 upvotes, 3 downvotes (70% like it) (You must be signed in to vote)
javascript
Mobile phone russia
Submitted by
Johhny
-
8 years ago
1
...
723
724
725
726
727
728
729
...
853
Roman numbers
Vote
-2
0 upvotes, 2 downvotes (0% like it) (You must be signed in to vote)
Regular Expression
javascript
/
^
(?!
$
)
M
{0,2}
(?:
M
(?=
CM
(?:
XC
)?
(?:
IX
)?
$
)
)?
(?:
C
(?=
M
[^
CD
]
*
(?:
XC
)?
[^
CD
]
*
$
)
)?
M
?
(?:
C
(?=
D
[^
C
]
*
(?:
XC
)?
[^
C
]
*
$
)
)?
D
?
C
{0,2}
(?:
C
(?=
XC
(?:
IX
)?
$
)
)?
(?:
X
(?=
C
[^
X
]
*
(?:
IX
)?
[^
X
]
*
$
)
(?!
.
*
L
)
)?
C
?
(?:
X
(?=
L
[^
X
]
*
(?:
IX
)?
[^
X
]
*
$
)
)?
L
?
X
{0,2}
(?:
X
(?=
IX
$
)
)?
(?:
I
(?=
[
XV
]
$
)
)?
X
?
V
?
I
{0,3}
$
/
Open regex in editor
Description
Loading markdown...
Submitted by
Nicolò Ribaudo
- 8 years ago