Please enable JavaScript to use this web application.
Regular
Expressions
101
Social
Social
Join the Discord community!
Follow me on twitter!
Send me an email
Donate
Donate
Donate through Paypal
Become a Github Sponsor
Info
Info
Find out what's new!
RegEx101 Wiki
Report bugs or make suggestions
What's new?
Loading content...
Close
Regex Editor
Regex Editor
Community Patterns
Community Patterns
Account
Account
Regex Quiz
Regex Quiz
Settings
Settings
Live Help
Live Help
Get help on Discord
Get help on IRC
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 (C#)
Rust
Sponsors
Community Patterns
Search among 14,820 community submitted regex patterns...
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
GrEedy
Python
greedy or no greedy_**
Submitted by
daen3r1s
-
2 days ago
2023-09-21 14:34
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
groupping math every 2 comma separator
PCRE (PHP <7.3)
i have paste \n after every 2-th comma using sed sed 's/\(\(*,\)\{2\}\)/\1\n/g'
Submitted by
sanekmihailow
-
4 days ago
2023-09-19 18:20
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Regex URL validation pattern
ECMAScript (JavaScript)
Regex URL validation pattern
Submitted by
Septian Maulana
-
4 days ago
2023-09-19 06:39
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Regex to find URLs in text
ECMAScript (JavaScript)
Regex to find URLs in text
Submitted by
Saheed Odulaja
-
5 days ago
2023-09-18 10:01
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Cron Job Regular Expression for JavaScript / ECMAScript
ECMAScript (JavaScript)
Simple pattern for validating Cron Job descriptors in your JavaScript / TypeScript / ECMAScript projects. Includes support for date ranges, day ranges, digit ranges, divisors... all of the things you'd expect to encounter in possible Cron values.
Submitted by
Nicholas Berlette (https://github.com/nberlette)
-
9 days ago
2023-09-14 23:31
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Non-Empty String
ECMAScript (JavaScript)
This simply checks if the string is not empty spaces.
Submitted by
anonymous
-
9 days ago
2023-09-14 21:39
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Javascript Email Verification RFC5322
ECMAScript (JavaScript)
Original credit for this expression goes to: https://emailregex.com/
Submitted by
anonymous
-
9 days ago
2023-09-14 21:34
(Last modified 9 days ago)
2023-09-14 22:03
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
find the function definition based on indentation
ECMAScript (JavaScript)
check the code
Submitted by
anonymous
-
9 days ago
2023-09-14 08:07
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Remove specific parameter from URL
PCRE (PHP <7.3)
This pattern finds a parameter (sst) key + value in a GET request URL. When replaced with an empty string, effectively removes the parameter. Works with both full URLs and isolated query strings. Works in PCRE and PCRE2. Full use case: if (isset($_GET["sst"])) { // validate...
Submitted by
Martin Holt
-
11 days ago
2023-09-13 00:35
(Last modified 11 days ago)
2023-09-13 00:41
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Opportunity Close
PCRE (PHP <7.3)
Prepare batch job for opportunity close
Submitted by
wistlo
-
15 days ago
2023-09-08 17:15
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
URL (URI) - TOTAL Breakdown: Named Groups (Supporting Literal, Relative, Dynamic URLs, with/without Filename/Ext, Query Parameters and/or Anchor Tags)
ECMAScript (JavaScript)
Need to FULLY Break Out EVERY Component of a URL? Like, as in "every constituent element individually accessible in its own named capture group?" Need it to be pre-optimized and fully ECMA-compliant? Want to see exhaustive unit tests proving these claims (144 are included; all 144 execute in 6.5ms. ...
Submitted by
@JJ for Nerdy Deeds, LLC
-
15 days ago
2023-09-08 16:51
(Last modified 15 days ago)
2023-09-08 16:54
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
HGVS - ClinVar Submission
Python
HGVS Nomenclature Check for ClinVar Submissions
Submitted by
anonymous
-
19 days ago
2023-09-04 12:57
(Last modified 19 days ago)
2023-09-04 12:58
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Adds custom prefix to tailwind classes
PCRE (PHP <7.3)
Or any other particular case where given any line that starts with the pattern "@apply" (or any other line heading) and it substitutes any word (list of characters without spaces), with or without puntuation in them, and it adds a custom prefix to all the words in that line but the line heading.
Submitted by
@drakopablo.dev
-
19 days ago
2023-09-04 10:51
2
2 upvotes, 0 downvotes (score 34.2%) (You must be signed in to vote)
Invalid Windows Filename Chars
PCRE (PHP <7.3)
https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file Integer value zero, sometimes referred to as the ASCII NUL character. Characters whose integer representations are in the range from 1 through 31, except for alternate data streams where these characters are allowed. For more info...
Submitted by
anonymous
-
19 days ago
2023-09-04 05:47
(Last modified 19 days ago)
2023-09-04 05:54
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
0x28C6A6DdF8fF8A47A90A69bfE75cd89904a14d71
Golang
0x28C6A6DdF8fF8A47A90A69bfE75cd89904a14d71
Submitted by
anonymous
-
22 days ago
2023-09-02 02:02
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Validate Wikipedia URL and extract Article Title
ECMAScript (JavaScript)
This works against a list of hyperlinks from the 'USS Marmora (1862)' article You can include File: pages by removing the File:| from the regex. I could improve how the remaining query for urls containing index.php, for now I recommend splitting in your chosen programming language. ...
Submitted by
Martin Shaw
-
a month ago
2023-08-28 03:16
(Last modified a month ago)
2023-08-28 03:58
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Nz postcodes - Auckland region
ECMAScript (JavaScript)
A regex to find if a postcode is in Auckland region (New Zealand)
Submitted by
brenmurrell
-
a month ago
2023-08-23 09:47
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Email Regex
ECMAScript (JavaScript)
ECMAScript simple regex for email validation
Submitted by
@marquesjob
-
a month ago
2023-08-20 17:48
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
Match emoji in emoji-zwj-sequences.txt
Python
Match emoji in emoji-zwj-sequences.txt
Submitted by
anonymous
-
a month ago
2023-08-18 14:19
1
1 upvotes, 0 downvotes (score 20.7%) (You must be signed in to vote)
emoji-test.txt
Python
emoji-test.txt
Submitted by
anonymous
-
a month ago
2023-08-18 12:53
1
2
3
4
...
741
fcc-title-case-a-sentence
0
0 upvotes, 0 downvotes (score 0%) (You must be signed in to vote)
Regular Expression
ECMAScript (JavaScript)
/
(
^
|
\s
)
\S
/
g
Open regex in editor
Description
Loading markdown...
Submitted by
anonymous
-
4 months ago
2023-06-05 03:24