Direct Address provides a rails app with simple address features. This is a streamlined implementation of address functionality. Direct Address provides you with address, country, and region classes. It also provides a generator which generates the necessary javascript and rake tasks to implement...

Worldize allows to draw world countries coloured on base of some numeric value for each country.

factbook-codes - world factbook country codes (by region, by category, etc.)

factbook-readers - turn thee world factbook country profile pages into open structured data e.g JSON

factbook-fields - world factbook country profile meta data - categories, fields, subfields, and more

Gem allows to use `flag-icon-css` - a collection of all country flags in SVG - in your Rails projects

metar-parser is a ruby gem that downloads weather reports, parses them and formats reports. It also provides weather station listings and info (e.g. country, latitude and longitude). Reports can be fully localized (currently Brazilian Portuguese, English, German and Italian are avai...

A Rails Engine to fill in a select box based on a country_select

Ruby library that parses a phone number and automatically formats it correctly, depending on the country/locale you set.

The official IP2Proxy Ruby library to detect VPN servers, open proxies, web proxies, Tor exit nodes, search engine robots, data center ranges and residential proxies using IP2Proxy BIN database. Other information available includes proxy type, country, state, city, ISP, domain name, usage type, A...

The e164 gem can parse and normalize numbers into the e164 format. It provides extra information on the Country Code and National Destination Codes. It can be used standalone or mixed into a model.

ISO SVG country flags (Images are public domain from https://github.com/koppi/iso-country-flags-svg-collection)

Country selector with ISO codes

Converts US State names and (most) country names to their normally accepted abbreviations and back.

worlddb-flags - country flags (24x24, 32x32, 48x48, 64x64) bundled for reuse w/ asset pipeline

Get countries by continent, or find the continents for a country given ISO 3166-1 alpha-2, alpha-3 and numeric codes

worldlite - lightweight public domain country data (all data included as good ol' ruby code - no database, no dependencies, no copyright)

Europe is a simple library for retrieving EU government data such as VAT information, VAT validation, currency exchange rates and country information.

This gem will translate an IATA into an airport name, location, city and country information. Wikipedia has provided the list of the airports

Rack::GeoIPCountry uses the geoip gem and the GeoIP database to lookup the country of a request by its IP address