Use this regular expression tester to debug patterns locally with private sample text, real-time matches, capture groups, and replacement support.
Regular Expression
Valid
//
Presets:
Test String
Highlighted Matches
Replace Mode
Interactive JavaScript Regex Cheat Sheet
JavaScript semantics
Click an entry to insert it at the current pattern selection. Lookbehind support depends on the browser; syntax may differ from PCRE, Python, Java, and .NET.