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]
  • Character class intersection
    [\w&&[^\d]]
  • 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

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"(https?:)?\/\/(www\.)?((zi\.mu)|(zi\.ma)|(yhoo\.it)|(yfrog\.com)|(yep\.it)|(y\.ahoo\.it)|(xurl\.es)|(xrl\.us)|(xrl\.in)|(wp\.me)|(url\.ie)|(url\.co\.uk)|(url\.az)|(ur1\.ca)|(u\.nu)|(twurl\.nl)|(twurl\.cc)|(tr\.im)|(to\.ly)|(tnij\.org)|(tinyurl\.com)|(tinylink\.in)|(tiny\.pl)|(tiny\.ly)|(tiny\.cc)|(tcrn\.ch)|(ta\.gd)|(t\.co)|(t\.cn)|(su\.pr)|(sp2\.ro)|(snurl\.com)|(snipurl\.com)|(snipr\.com)|(shrt\.st)|(shorturl\.com)|(short\.ie)|(shorl\.com)|(shar\.es)|(sameurl\.com)|(safe\.mn)|(post\.ly)|(ping\.fm)|(ow\.ly)|(om\.ly)|(nyti\.ms)|(nsfw\.in)|(moby\.to)|(migre\.me)|(lnkd\.in)|(linkbun\.ch)|(linkbee\.com)|(liip\.to)|(krunchd\.com)|(korta\.nu)|(j\.mp)|(is\.gd)|(hurl\.me)|(huff\.to)|(goo\.gl)|(fwd4\.me)|(fff\.to)|(ff\.im)|(fb\.me)|(fav\.me)|(eepurl\.com)|(doiop\.com)|(dlvr\.it)|(disq\.us)|(digg\.com)|(digbig\.com)|(decenturl\.com)|(cutt\.us)|(cot\.ag)|(cli\.gs)|(clck\.ru)|(cl\.ly)|(chilp\.it)|(budurl\.com)|(bit\.ly)|(binged\.it)|(bacn\.me)|(arst\.ch)|(alturl\.com)|(afx\.cc)|(adjix\.com)|(adf\.ly)|(4sq\.com)|(3\.ly)|(0rz\.tw)|(we\.tl)|(ouo\.io)|(bfy\.tw)|(bit\.do))\/[a-z0-9]+ "; string input = @"https://zi.mu/dfd"; Match m = Regex.Match(input, pattern); Console.WriteLine("'{0}' found at index {1}", m.Value, m.Index); } }

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