Regex Tester
Development
Live-test your regular expressions with flags and highlighted matches.
Pattern & Flags
new RegExp(pattern, flags)const re = new RegExp("your-pattern", "g");
const matches = Array.from(text.matchAll(re));
// matches: RegExpMatchArray[]
const ok = re.test(text);
// ok: boolean
const replaced = text.replace(re, "…");Test Text
How to use
- Enter your regex pattern and test text.
- Enable flags like g, i, m as needed.
- Review matches and capture groups in real time.
Features
- Live matching with highlighting.
- Flag toggles (global, case‑insensitive, multiline...)
- Safe, client‑side execution.