Regex Tester

Test regular expressions with live syntax highlighting and a cheat sheet.

About Regex Tester

Debug your regular expressions faster with our high-performance Regex Tester. Featuring live syntax highlighting and match indicators, this tool helps you find the right pattern without the guesswork. It includes a built-in cheat sheet for common regex tokens like anchors, quantifiers, and character classes.

Key Features

  • Live regex match highlighting
  • Integrated regex cheat sheet
  • Support for global, case-insensitive, and multiline flags
  • Interactive explanation of patterns
  • Syntax coloring for complex expressions

Frequently Asked Questions

What is a regular expression?

A regular expression (Regex) is a sequence of characters that forms a search pattern, often used for string searching and validation.

Does it support groups?

Yes, capturing and non-capturing groups are supported and highlighted individually.