Regex Tester

Welcome to the Regex Tester tool! Test, learn, and experiment with regular expressions in real-time. Use this tool to validate regex patterns, see matches, and gain a better understanding of how regular expressions work.

Regular Expression

Test Text

Matches

No matches found.

Common Patterns

\dMatches any digit (0-9).
\wMatches any word character (a-z, A-Z, 0-9, _).
\sMatches any whitespace character.
^Matches the start of a string.
$Matches the end of a string.
.Matches any character except a newline.
\bMatches a word boundary (e.g., between a word and a space).
\BMatches a non-word boundary.
\d+Matches one or more digits.
\w+Matches one or more word characters.
\s+Matches one or more whitespace characters.
\DMatches any non-digit character.
\WMatches any non-word character.
\SMatches any non-whitespace character.
(abc|def)Matches either 'abc' or 'def'.
(a{2,4})Matches 'a' between 2 and 4 times.
a{2,}Matches 'a' 2 or more times.
a{,4}Matches 'a' up to 4 times.
(\d{3})-(\d{3})-(\d{4})Matches a phone number in the format XXX-XXX-XXXX.
\b\w+\bMatches any whole word.
$?\d{3}$?[-\s]?\d{3}[-\s]?\d{4}Matches a phone number with optional parentheses and spaces.
[A-Za-z]Matches any uppercase or lowercase letter.
[^0-9]Matches any character that is not a digit.
(?<=@)[A-Za-z0-9]+Matches any word after the '@' symbol (e.g., domain in email).
(?=\d)Positive lookahead, matches only if there's a digit ahead.
(?!\d)Negative lookahead, matches only if there's no digit ahead.
(?<=\d)(?=\w)Positive lookbehind followed by positive lookahead.
\p{Emoji}Matches any emoji character (Unicode property).
\p{L}Matches any letter character (Unicode property).
\p{Number}Matches any numeric character (Unicode property).
[^\x00-\x7F]Matches any non-ASCII character.
a{2,4}?zMatches 'a' between 2 and 4 times, non-greedy, followed by 'z'.
(\d{2,4})-(\d{1,2})-(\d{1,2})Matches a date in YYYY-MM-DD format.