A Swift library for validating postal codes with support for over 200 regions worldwide.
PostalCodeValidator is a Swift library that validates postal codes for international applications. It provides validation rules for over 200 regions worldwide, helping developers ensure address data correctness in e-commerce, shipping, and user registration systems. The library sources its data from i18napis.appspot.com after Unicode CLDR deprecated postal code format information.
iOS and macOS developers building applications that require international address validation, particularly those working on e-commerce, shipping, or user registration features that need to validate postal codes across multiple countries.
Developers choose PostalCodeValidator because it provides a maintained, reliable solution for postal code validation after CLDR deprecated this functionality, with simple Swift API integration and comprehensive coverage of 200+ regions without needing to maintain validation rules manually.
A validator for postal codes with support for 200+ regions
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Validates postal codes for over 200 regions, making it suitable for global applications as demonstrated in the README examples for US and Japan.
Offers an easy-to-use validate() method that returns true/false, simplifying integration with minimal code, as shown in the provided Swift snippets.
Serves as a maintained alternative after CLDR deprecated postal code formats, sourcing data from i18napis.appspot.com to fill this gap for Swift developers.
Installs via Swift Package Manager with straightforward dependencies, reducing setup complexity as per the installation guide.
The data is sourced from November 27, 2019, so it may not reflect recent postal code changes or additions, limiting accuracy for current systems.
Known issues section admits it doesn't support special postal codes like armed forces in Germany, causing validation failures for specific use cases.
Only validates postal codes, not full addresses, requiring additional libraries or APIs for comprehensive address checking in applications.