Regex Tester is a tool to learn, build, & test Regular Expressions (RegEx / RegExp). Results update in real-time as you type. Roll over a match or expression for details. Save & share expressions with others. Explore the Library for help & examples. Undo & Redo with {{getCtrlKey()}}-Z / Y. Search for & rate Community patterns.
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any character except newline |
w d s | word, digit, whitespace |
W D S | not word, digit, whitespace |
any of a, b, or c | |
<^abc> | not a, b, or c |
character between a & g | |
^abc$ | start / end of the string |
word boundary | |
. * \ | escaped special characters |
tab, linefeed, carriage return | |
u00A9 | unicode escaped © |
(abc) | capture group |
1 | backreference to group #1 |
(?:abc) | non-capturing group |
(?=abc) | positive lookahead |
(?!abc) | negative lookahead |
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 |
extended (x) extra (X) single line (s) unicode (u) Ungreedy (U) Anchored (A) dup subpattern names(J)
PostWhen asking a question, provide as much detail as possible. Posts of simply “It doesn”t work” may be removed. Don”t SpamBe respectful”>Posting Guidelines` – Surround code with backticks* – Surround text with stars to italicize.>> – A line starting with two greater than characters will be indented as a quote.A blank line will separate paragraphs.”>Formatting
Url checker with or without http:// or https://Match string not containing stringCheck if a string only contains numbersOnly letters and numbersMatch elements of a urlMatch an email addressdate format (yyyy-mm-dd)Url Validation Regex | Regular Expression – TahaValidate an ip addressmatch whole wordMatch or Validate phone numbernginx testspecial characters checkMatch html tagExtract String Between Two STRINGSMatch anything enclosed by square brackets.Find Substring within a string that begins and ends with paranthesisBlocking site with unblocked gamesSimple date dd/mm/yyyyEmpty String
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any character except newline |
w d s | word, digit, whitespace |
W D S | not word, digit, whitespace |
any of a, b, or c | |
<^abc> | not a, b, or c |
character between a & g | |
^abc$ | start / end of the string |
word boundary | |
. * \ | escaped special characters |
tab, linefeed, carriage return | |
u00A9 | unicode escaped © |
(abc) | capture group |
1 | backreference to group #1 |
(?:abc) | non-capturing group |
(?=abc) | positive lookahead |
(?!abc) | negative lookahead |
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 |
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