UtilityKit

Regex Tester & Builder

Build, test, and debug regular expressions visually.

//gi
Character Classes
Quantifiers & Anchors

Match Results 0 matches

Enter a pattern and click Test to see results.

Common Templates

Pattern Explanation

Enter a pattern to see a breakdown of its logic.

Regex Cheat Sheet

. Any Char
\d Digit
\w Word
\s Space
^ Start
$ End
* 0 or more
+ 1 or more

Step-by-Step Guide

  1. 1Enter your regular expression pattern in the designated input field.
  2. 2Provide test strings in the text area to see which parts match your pattern.
  3. 3Toggle flags like global (g), case-insensitive (i), or multiline (m) as needed.
  4. 4Review the highlighted matches and use the cheat sheet for quick reference.

Why use this tool?

Regular expressions (Regex) are powerful tools for pattern matching and text manipulation. Our Regex Tester provides an interactive environment to build, test, and debug your regex patterns in real-time. With visual highlighting and instant feedback, you can ensure your expressions work perfectly before integrating them into your codebase.

Privacy Note: Like all tools on UtilityKit, this utility runs entirely in your browser. No data is sent to our servers.