Regex Tester
Test regular expressions live with match highlighting and capture groups.
About this tool
Test regular expressions online with live highlighting, a match count and capture-group breakdown. Supports all JavaScript regex flags. Your pattern and test text stay on your device, so it is safe for logs and production data.
Which regex flavor is this?
JavaScript (ECMAScript) - the flavor used in browsers and Node.js. Most patterns also work in other languages with minor differences.
Why does my pattern match nothing?
Check the escaping: you write the pattern without surrounding slashes here, so \d already means a digit.