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Regex Tester

Test regular expressions with live matching and multiple flags.

Tool Guide

What is Regex Tester?

Test regular expressions with live matching and multiple flags.

How to use?

  1. Write Regex: Enter your regular expression and flags (e.g., g, i).
  2. Paste Test Text: Enter test cases in the main text box.
  3. Highlight Matches: Real-time highlighting of matches and capture groups for easy debugging.

Use Cases

Form Validation Development

Test complex email or phone regex patterns against edge cases before hardcoding them.