Regular Expression Tester

Test and validate regular expressions with real-time matching

Regular Expression Pattern

//g

Test String

Results

0 Matches

Quick Reference

Character Classes

  • . - Any character
  • \d - Digit (0-9)
  • \w - Word character
  • \s - Whitespace
  • [abc] - Character set
  • [^abc] - Negated set

Quantifiers

  • * - Zero or more
  • + - One or more
  • ? - Zero or one
  • {n} - Exactly n
  • {n,m} - Between n and m
  • {n,} - n or more

Anchors & Groups

  • ^ - Start of string
  • $ - End of string
  • () - Capture group
  • (?:) - Non-capture group
  • | - Alternation
  • \ - Escape character