Zip Code Regex Tester
Test and validate zip patterns with this specialized regex tester. Includes tested patterns and real-time matching.
Recommended Zip Pattern
``regex
^\d{5}(-\d{4})?$
`
Test Examples
Valid matches:
- 12345
12345-67890000099999-9999
Invalid (should not match):
123412345612345-678ABCDE
Pattern Explanation
Matches US ZIP code (5 digits) or ZIP+4 (5+4 digits)
Alternative Patterns
1. ^\d{5}$
2. ^\d{5}-\d{4}$`
How to Use
1. The pattern above is preloaded—or enter your own 2. Add test strings to validate 3. See real-time match highlights 4. Copy the pattern for your code
Regex Quick Reference
| Symbol | Meaning | Example | \dAny digit\d{3} matches "123" \wWord character\w+ matches "hello" +One or morea+ matches "aaa" *Zero or morea* matches "" or "aaa" ?Optionalcolou?r matches "color" ^Start of string^Hello $End of stringworld$ [abc]Character class[aeiou] matches vowels (ab)Alternation(catdog) matches either