Post Code Tool

This tool validates and formats postal codes by country. It accepts a country code and a postal code, returns validity, and provides a normalized code suitable for storage and matching. It supports international formats and can be used in data entry validation, customer onboarding, and address geocoding preparation.
Core logic uses per-country rules, including regex patterns, length checks, and whitespace normalization. In strict mode, it enforces canonical spacing and hyphenation; in lenient mode, it tolerates common human-entry variants.
Audience includes developers integrating forms, data engineers cleaning datasets, and marketing teams ensuring consistent records. Unique value: country-aware normalization, fast lookups, and clear error codes, enabling automated ETL pipelines.
Key features include multi-field input, robust validation, canonical normalization, regional hints, and export-ready outputs. Use cases cover address verification for e-commerce, batch data cleansing, CRM deduplication, and data quality initiatives.