🔍 Regex Tester & Builder
🔍 Regex Tester & Builder
Test regular expressions live — see matches highlighted, capture groups extracted, and get the grep/sed/awk command
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Quick Reference
Common Patterns
| . | Any char |
| \\d \\w \\s | Digit, word, space |
| [abc] [^abc] | Char class, negated |
| * + ? | 0+ 1+ 0-1 |
| {n} {n,m} | Exactly n, n to m |
| ^ $ | Start/end of line |
| (abc) | Capture group |
| (?:abc) | Non-capture group |
| a|b | Alternation (or) |
| \\b | Word boundary |
Common Patterns