json-2-csv
A JSON to CSV and CSV to JSON converter that natively supports sub-documents and auto-generates the CSV heading.
countries-list
Continents & countries: ISO 3166-1 alpha-2 code, name, ISO 639-1 languages, capital, currency, native name, phone. JSON, CSV and SQL.
world_countries_lists
Constantly updated lists of world countries and their associated alpha-2, alpha-3 and numeric codes as defined by the ISO 3166 standard, available in multiple formats, in multiple languages and with national flags included