Regex Tester
Test regular expressions in real time with highlighted matches. Supports all JavaScript regex flags. Runs entirely in your browser.
/
/
Quick Reference Cheatsheet
. — Any char\d — Digit\w — Word char\s — Whitespace^ — Start$ — End* — 0 or more+ — 1 or more? — 0 or 1{n,m} — Between n–m[abc] — Char class(abc) — Groupa|b — Or\b — Word boundary(?=...) — Lookahead(?!...) — Neg lookahead