Regex Pal

Dan's Tools
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The Wowhead Client is a little application we use to keep our database up to date, and to provide you with some nifty extra functionality on the website!  

It serves 2 main purposes:  

  1. It maintains a WoW addon called the Wowhead Looter, which collects data as you play the game!  
  2. It uploads the collected data to Wowhead in order to keep the database up-to-date!  

You can also use it to keep track of your completed quests, recipes, mounts, companion pets, and titles! 

So, what are you waiting for? Download the client and get started. 

Display id



Top Regular Expressions

Match string not containing string
Url checker with or without http:// or https://
Check if a string only contains numbers
Only letters and numbers
Match elements of a url
Match an email address
Validate an ip address
date format (yyyy-mm-dd)
Url Validation Regex | Regular Expression - Taha
match whole word
Match or Validate phone number
nginx test
special characters check
Match html tag
Extract String Between Two STRINGS
Blocking site with unblocked games
Match anything enclosed by square brackets.
Find Substring within a string that begins and ends with paranthesis
Simple date dd/mm/yyyy
Empty String

Cheat Sheet

Character classes
. any character except newline
\w \d \s word, digit, whitespace
\W \D \S not word, digit, whitespace
[abc] any of a, b, or c
[^abc] not a, b, or c
[a-g] character between a & g
^abc$ start / end of the string
\b word boundary
Escaped characters
\. \* \\ escaped special characters
\t \n \r tab, linefeed, carriage return
\u00A9 unicode escaped ©
Groups & Lookaround
(abc) capture group
\1 backreference to group #1
(?:abc) non-capturing group
(?=abc) positive lookahead
(?!abc) negative lookahead
Quantifiers & Alternation
a* a+ a? 0 or more, 1 or more, 0 or 1
a{5} a{2,} exactly five, two or more
a{1,3} between one & three
a+? a{2,}? match as few as possible
ab|cd match ab or cd