Developer Reference Datasets
Standard reference data as JSON: HTTP status codes, language codes, country codes, currency codes, MIME types and time zones — filter online, copy or download in one click for development and testing.
HTTP Status Codes61 codes with standard phrases and categoriesISO Language CodesISO 639-1 two-letter codes with namesCountry CodesISO 3166-1 two-letter codes with namesCurrency CodesISO 4217 codes, symbols and namesMIME TypesCommon file extensions and their MIME typesIANA Time ZonesAll zone IDs with current UTC offsets
Where this data comes from
HTTP status codes and MIME types follow the RFCs and IANA registries; language, country and currency names come from Unicode CLDR — the same internationalization data built into browsers and operating systems, so what you copy is the industry-standard wording.
How to use it
Every dataset can be filtered by keyword, copied as a JSON array or downloaded as a .json file — paste it into code as a constant table, import it into a database as a dictionary, or feed it to a test-data generator.