⁂Regex Tester
Test regular expressions live.
About Regex Tester
Test and debug regular expressions against your own text, with flag support and live match highlighting. Runs in your browser. Free online regex tester and debugger.
🔒 Private by design — this tool runs entirely in your browser. Nothing you enter is uploaded to a server.
Frequently asked questions
Which regex flavour is used?＋
JavaScript regular expressions, with support for flags like i (ignore case) and g (global). Matches are highlighted live.