Regex Tester Pro

Craft, test, and debug your regular expressions with an intuitive, real-time interface.

Some tools can take a bit log time to load properly on the background, please wait until it's complete.

/
/g

Valid Pattern

Flags

Highlighted Result

Analyzing...

Match Information

No matches found.

Understanding Your Regex Tool

How It Works:

Type your regex pattern, select flags, and provide a test string. Results update in real-time, highlighting matches and listing detailed information including captured groups.

Key Features:

  • Real-time pattern validation and matching.
  • Support for all standard JavaScript regex flags.
  • Visual highlighting of all found matches.
  • Detailed breakdown of matches and captured groups.
  • Interactive selection of matches for focused analysis.
  • Secure client-side processing (your data stays private).

Tip: Hover over flags for descriptions. Click on a highlighted match in the "Highlighted Result" or a match card in "Match Information" to sync selection.