Dev Toolbox

An all-in-one developer tools platform, providing efficient and convenient tools for developers

Regex Tester

Test and validate regular expressions, view match results in real time

Regular Expression

Test String

Quick Regex Guide

  • . Matches any single character (except newline)
  • * Matches the preceding element zero or more times
  • + Matches the preceding element one or more times
  • ? Matches the preceding element zero or one time
  • ^ Matches the start of a string
  • $ Matches the end of a string
  • [] Matches any one character inside the brackets
  • () Defines a capture group
  • | OR operator
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