Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
Processing...

Test String

Code Generator

Language

Generated Code

import re regex = re.compile(r"ggg") test_str = ("The_Hink\n" "8\n" "G\n" "Mr.Lol https://namemc.com/profile/Mr.LoL/6e27dd0e\n" "$ https://namemc.com/profile/$/dce40453\n\n" "^(?![0-9a-zA-Z\\_]{1,16}.)*$\n\n\n\n" "[Admin] Hink\n" " [Mod] Hink\n" "asd [] asd\n" "[] Nigger\n" "[[ ]]\n" "][\n\n" ".*?[\\[](.+)?[\\]].*\n\n\n\n" "^([^a-zA-Z0-9]*|.*[^a-zA-Z0-9]*)?[\\h\\H\\Ĥ\\ĥ\\Ħ\\ħ][^a-zA-Z0-9]*[\\i\\I\\!\\|\\Ì\\ì\\Í\\í\\Î\\î\\Ï\\ï\\!\\|][^a-zA-Z0-9]*[\\n\\N\\Ń\\ń\\Ņ\\ņ\\Ň\\ň\\ʼn\\Ŋ\\ŋ][^a-zA-Z0-9]*[\\k\\K\\Ķ\\ķ\\ĸ].*?$\n" "hink\n" "Hink\n" "HiNk\n" "hnk\n" "think\n" " hink\n" "-hink_\n" "h-i-n-k\n" "h i n k\n" "kys hink\n" "idk hink what's up?\n" "stop being a nif\n" "t hink\n" "2 2 hi___nk 22\n\n\n\n\n\n" "^([^a-zA-Z0-9]*|(.*[^a-zA-Z0-9]+))?[hH\\Ĥ\\ĥ\\Ħ\\ħ][^a-zA-Z0-9]*[iI!|\\Ì\\ì\\Í\\í\\î\\Ï\\ï][^a-zA-Z0-9]*[nN\\Ń\\ń\\Ņ\\ņ\\Ň\\ň\\ʼn\\Ŋ\\ŋ][^a-zA-Z0-9]*[kK\\Ķ\\ķ\\ĸ].*$\n" "Hink\n" "hink\n" "think\n" "hink is cunt\n" "lick my cunt hink\n" "h - ink\n" " h ---inK+_\n" "ĤÏNķ\n" "think\n" "sticky hinky\n\n" "^[\\h\\H\\Ĥ\\ĥ\\Ħ\\ħ][\\i\\I\\!\\|\\Ì\\ì\\Í\\í\\Î\\î\\Ï\\ï][\\n\\N\\Ń\\ń\\Ņ\\ņ\\Ň\\ň\\ʼn\\Ŋ\\ŋ][\\k\\K\\Ķ\\ķ\\ĸ]$\n\n\n" "^.*[\\⁢\\ㅤ\\ﾠ\\ᅠ\\ᅟ].*$\n\n" "^.*[\\u2062\\u3164\\uFFA0\\u1160\\u115F].*$\n" "http://www.fileformat.info/info/unicode/char/2062/index.htm: \"⁢\"\n" "http://www.fileformat.info/info/unicode/char/3164/index.htm: \"ㅤ\"\n" "http://www.fileformat.info/info/unicode/char/ffa0/index.htm: \"ﾠ\"\n" "http://www.fileformat.info/info/unicode/char/1160/index.htm: \"ᅠ\"\n" "http://www.fileformat.info/info/unicode/char/115f/index.htm: \"ᅟ\"\n\n\n" "^([^a-zA-Z0-9]*|(.*[^a-zA-Z0-9]+))?[hH][^a-zA-Z0-9]*[iI!][^a-zA-Z0-9]*[nN][^a-zA-Z0-9]*[kK].*$\n\n\n") matches = regex.finditer(test_str) for match_num, match in enumerate(matches, start=1): print(f"Match {match_num} was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Python, please visit: https://docs.python.org/3/library/re.html