Test and debug regular expressions live — with match highlighting and group capture
| Token | Meaning |
|---|---|
. | Any character except newline |
* | 0 or more |
+ | 1 or more |
? | 0 or 1 (optional) |
{n,m} | Between n and m times |
^ | Start of string/line |
$ | End of string/line |
| | OR |
| Token | Meaning |
|---|---|
\d | Digit [0-9] |
\w | Word character [a-zA-Z0-9_] |
\s | Whitespace |
\b | Word boundary |
[abc] | Character class |
[^abc] | Negated class |
(abc) | Capture group |
(?:abc) | Non-capturing group |
© 2026 dconverter.org. All Rights Reserved.