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
No Match

/
/
g

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

const regex = /[\u006E\u00B0\u00B2\u00B3\u00B9\u02AF\u0670\u0711\u2121\u213B\u2207\u29B5\uFC5B-\uFC5D\uFC63\uFC90\uFCD9\u2070\u2071\u2074-\u208E\u2090-\u209C\u0345\u0656\u17D2\u1D62-\u1D6A\u2A27\u2C7C]+/g; // Alternative syntax using RegExp constructor // const regex = new RegExp('[\\u006E\\u00B0\\u00B2\\u00B3\\u00B9\\u02AF\\u0670\\u0711\\u2121\\u213B\\u2207\\u29B5\\uFC5B-\\uFC5D\\uFC63\\uFC90\\uFCD9\\u2070\\u2071\\u2074-\\u208E\\u2090-\\u209C\\u0345\\u0656\\u17D2\\u1D62-\\u1D6A\\u2A27\\u2C7C]+', 'g') const str = `ᵀᴹ ¹²³ ⁰⁴Txtͅ ٖ ្ ᵢ ᵣ ᵤ ᵥ ᵦ ᵧ ᵨ ᵩ ᵪ ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ ₊ ₋ ₌ ₍ ₎ ₐ ₑ ₒ ₓ ₔ ₕ ₖ ₗ ₘ ₙ ₚ ₛ ₜ ⨧ ⱼ n ° ² ³ ¹ ʯ ٰ ܑ ⁰ ⁱ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁺ ⁻ ⁼ ⁽ ⁾ ⁿ ℡ ℻ ∇ ⦵ ﱛ ﱜ ﱝ ﱣ ﲐ ﳙ `; const subst = ``; // The substituted value will be contained in the result variable const result = str.replace(regex, subst); console.log('Substitution result: ', result);

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 JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions