Forward and Reverse lookups for full country data sets including country info, phone formats, postal formats, currency, languages and states

Airport, airline, countries, holidays, telephony, and time zones data in a structured format (CSV, JSON, and YAML)

A customizable country picker for Jetpack Compose 🚀

Joi extensions for ISO 3166-1 alpha-2 country code rules.

A lightweight, customizable country code picker built with SwiftUI, packaged as a Swift Package, and designed specifically for iOS apps.It provides a smooth, native experience with auto-detection, search, animations, haptics, and robust support for both SwiftUI & UIKit.

Basic international dialing info as .plist

IP → ISO Country Code - Uses a pre-calculated binary tree with source data on disk, limiting memory usage and disk reads to a minimum. Includes mk-ip4db to create the optimized database from public text source data.

A lightweight, client-side phone number validation library with comprehensive support for 181 countries and operator detection for 50+ telecommunications providers worldwide. Built with pure JavaScript and designed for privacy-first validation without external API dependencies.

Neo4j Graph database examples

Mapping of Norwegian SSB's "Standard for land og statsborgerskap" to ISO country codes

Data preparation for Tableau using Python