ZIP Code Validator

ZIP Code Validator

Quickly validate US ZIP codes to check whether they follow the correct 5-digit or ZIP+4 format. Paste one or multiple ZIP codes and get instant validation results with clear valid/invalid badges.

Comment utiliser

Enter one or more US ZIP codes in the input field, one per line. The tool automatically validates each ZIP code as you type, showing whether it matches the standard 5-digit format (e.g., 90210) or the extended ZIP+4 format (e.g., 90210-1234). A summary displays the total count of valid and invalid entries.

Caractéristiques

• Dual Format Support – Validates both 5-digit ZIP codes and ZIP+4 extended codes
• Validation en masse – Check multiple ZIP codes at once, one per line
• Résultats en temps réel – Validation happens instantly as you type
• Clear Visual Feedback – Color-coded valid/invalid badges for each entry
• Statistiques récapitulatives – See total valid and invalid counts at a glance