AurumToolsRegular Expression Tester

Code & Data Utilities

Regular Expression Tester

Test a JavaScript regular expression and flags against text locally.

Fast and secure data transformation directly in your browser.

Flags
Toggle:
💡 Flag Guide:gGlobal search: Finds all matches rather than stopping after the first match.
Pattern
📖 Pattern Breakdown & Guide:8 components parsed
[a-zA-Z0-9._%+-]Character Set
Matches any one character in [a-zA-Z0-9._%+-]
+One or more (+)
Matches 1 or more times
@Literal text "@"
Matches the exact string "@"
[a-zA-Z0-9.-]Character Set
Matches any one character in [a-zA-Z0-9.-]
+One or more (+)
Matches 1 or more times
\.Literal '.'
Matches the literal character '.'
[a-zA-Z]Character Set
Matches any one character in [a-zA-Z]
{2,}Quantifier {2,}
Matches previous token At least 2 times
Test text
글자수/Chars:105줄수/Lines:5

Regex result

Matches: 3
support@aurumtools.dev [0-22] groups:  named: 
developer.kim@gmail.com [23-46] groups:  named: 
sales@company.co.kr [47-66] groups:  named:

Matches

Regex guide

  1. Enter a pattern and test text.
  2. Review matches and capture groups.
Flags
Options such as g, i, and m that change matching behavior.
Capture groups
Parenthesized parts whose matched values are captured separately.

Limitation: Only JavaScript regular expression syntax is supported.

Safety: Do not enter sensitive data.