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

Substitution
Processing...

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"""(.*?)"""; string substitution = @""; string input = @"[{""id"":596,""_id"":""CategoryPublication0""},{""id"":731,""_id"":""CategoryPublication1""},{""id"":732,""_id"":""CategoryPublication2""},{""id"":682,""_id"":""CategoryPublication3""},{""id"":585,""_id"":""CategoryPublication4""},{""id"":666,""_id"":""CategoryPublication5""},{""id"":603,""_id"":""CategoryPublication6""},{""id"":683,""_id"":""CategoryPublication7""},{""id"":584,""_id"":""CategoryPublication8""},{""id"":733,""_id"":""CategoryPublication9""},{""id"":734,""_id"":""CategoryPublication10""},{""id"":748,""_id"":""CategoryPublication11""},{""id"":652,""_id"":""CategoryPublication12""},{""id"":576,""_id"":""CategoryPublication13""},{""id"":651,""_id"":""CategoryPublication14""},{""id"":595,""_id"":""CategoryPublication15""},{""id"":750,""_id"":""CategoryPublication16""},{""id"":628,""_id"":""CategoryPublication17""},{""id"":752,""_id"":""CategoryPublication18""},{""id"":571,""_id"":""CategoryPublication19""},{""id"":629,""_id"":""CategoryPublication20""},{""id"":735,""_id"":""CategoryPublication21""},{""id"":645,""_id"":""CategoryPublication22""},{""id"":573,""_id"":""CategoryPublication23""},{""id"":711,""_id"":""CategoryPublication24""},{""id"":577,""_id"":""CategoryPublication25""},{""id"":593,""_id"":""CategoryPublication26""},{""id"":749,""_id"":""CategoryPublication27""},{""id"":578,""_id"":""CategoryPublication28""},{""id"":753,""_id"":""CategoryPublication29""},{""id"":693,""_id"":""CategoryPublication30""},{""id"":624,""_id"":""CategoryPublication31""},{""id"":604,""_id"":""CategoryPublication32""},{""id"":736,""_id"":""CategoryPublication33""},{""id"":697,""_id"":""CategoryPublication34""},{""id"":737,""_id"":""CategoryPublication35""},{""id"":605,""_id"":""CategoryPublication36""},{""id"":738,""_id"":""CategoryPublication37""},{""id"":574,""_id"":""CategoryPublication38""},{""id"":739,""_id"":""CategoryPublication39""},{""id"":579,""_id"":""CategoryPublication40""},{""id"":580,""_id"":""CategoryPublication41""},{""id"":581,""_id"":""CategoryPublication42""},{""id"":754,""_id"":""CategoryPublication43""},{""id"":575,""_id"":""CategoryPublication44""},{""id"":606,""_id"":""CategoryPublication45""},{""id"":712,""_id"":""CategoryPublication46""},{""id"":607,""_id"":""CategoryPublication47""},{""id"":608,""_id"":""CategoryPublication48""},{""id"":582,""_id"":""CategoryPublication49""},{""id"":583,""_id"":""CategoryPublication50""},{""id"":740,""_id"":""CategoryPublication51""},{""id"":572,""_id"":""CategoryPublication52""},{""id"":609,""_id"":""CategoryPublication53""},{""id"":586,""_id"":""CategoryPublication54""},{""id"":587,""_id"":""CategoryPublication55""},{""id"":594,""_id"":""CategoryPublication56""},{""id"":755,""_id"":""CategoryPublication57""},{""id"":588,""_id"":""CategoryPublication58""},{""id"":724,""_id"":""CategoryPublication59""},{""id"":653,""_id"":""CategoryPublication60""},{""id"":756,""_id"":""CategoryPublication61""},{""id"":589,""_id"":""CategoryPublication62""},{""id"":590,""_id"":""CategoryPublication63""},{""id"":698,""_id"":""CategoryPublication64""},{""id"":591,""_id"":""CategoryPublication65""},{""id"":684,""_id"":""CategoryPublication66""},{""id"":741,""_id"":""CategoryPublication67""},{""id"":1,""_id"":""CategoryPublication68""},{""id"":592,""_id"":""CategoryPublication69""},{""id"":742,""_id"":""CategoryPublication70""},{""id"":743,""_id"":""CategoryPublication71""},{""id"":713,""_id"":""CategoryPublication72""}]"; Regex regex = new Regex(pattern); string result = regex.Replace(input, substitution); } }

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 C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx