🔍 Regex Tester

Test regular expressions with live matching and highlighting — Free, No Sign-up, Works in Browser

Free Regex Tester Online — Test regular expressions with live matching and highlighting

How to Test Regular Expressions

Enter your regex pattern and test string. Matches are found instantly with position info and captured groups. Supports global, case-insensitive, and multiline flags.

What regex flavour is used?

JavaScript regex (ECMAScript). Supports lookahead, lookbehind, named groups, and Unicode properties in modern browsers.

Can I test regex for other languages?

JavaScript regex is compatible with most languages (Python, PHP, Java) for basic patterns. Some advanced features may differ.

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