Advanced Regular Expression Tester
Matching Results
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📚 Regex Cheat Sheet
\d
Any digit (0-9)
\w
Word character (a-z, A-Z, 0-9, _)
\s
Whitespace character
.
Any character except newline
^
Start of string
$
End of string
[abc]
Any of a, b, or c
[^abc]
Not a, b, or c
a|b
a or b
\b
Word boundary
🔧 Regex Tester API
Use our API to test regular expressions programmatically:
// API Endpoint: POST /api/test-regex
// Request body: {"pattern": "\\d{3}-\\d{2}-\\d{4}", "text": "My SSN is 123-45-6789", "flags": "gi"}
// Response: {"matches": ["123-45-6789"], "count": 1, "valid": true}
// Request body: {"pattern": "\\d{3}-\\d{2}-\\d{4}", "text": "My SSN is 123-45-6789", "flags": "gi"}
// Response: {"matches": ["123-45-6789"], "count": 1, "valid": true}