About
Standards is a browser and export tool for the world's reference standards — ISO 3166 countries, ISO 4217 currencies, ISO 639 languages and IANA timezones. Every view renders what your JavaScript runtime's Intl data believes side by side with the standard's authoritative source, so divergences between the two are visible rather than silent. Filtered slices export as CSV or JSON, and a read-only JSON API serves the same data to your own tools.
Data freshness
These are the exact versions behind the data you are looking at right now, read from the running server.
Runtime
Versions of the JavaScript runtime and the Intl data baked into it.
Reference data
Versions of the official and curated sources the runtime is compared against.
- IANA tzdata
- 2026a
- CLDR
- 48.0
- Built
- 2026-08-05
Timezone database release compiled into the Node.js runtime.
Unicode CLDR release backing the localized names.
Server module initialized at 2026-08-05T08:26:42.245Z.
Data sources & attribution
This project reproduces identifiers and factual data — codes, names, offsets, memberships — and not the text, tables or layout of any published standard. No paywalled standards document was copied, scraped or redistributed.
| Source | Used for | Terms |
|---|---|---|
| Unicode CLDR / ICU | Country, language, currency and timezone display names; localized name variants, read at runtime through the JavaScript Intl API. | Unicode License v3 — © 1991–present Unicode, Inc. |
| IANA Time Zone Database | Timezone identifiers, UTC offsets, DST rules and country mappings. | Public domain |
| IANA Language Subtag Registry | BCP 47 language subtags and variants. | Public domain (IETF / BCP 47) |
| UN Statistics Division — M49 | Regional and subregional groupings, numeric country codes, UN membership. | Freely available for reference use |
| SIX Group (ISO 4217 registrar) | Currency codes, numeric codes, minor units, and the List One / List Three split. | Published freely by the ISO 4217 maintenance agency |
| Wikipedia and other public references | Supplementary curated tables — IOC, FIFA, vehicle, aircraft and calling codes, ccTLDs, local short names, ISO 3166-2 subdivision names. | CC BY-SA 4.0 where applicable |
| ISO Online Browsing Platform | Cross-checking ISO 3166, 3166-2, 4217 and 639 code assignments against their registry entries. | Codes consulted as facts; ISO's standards documents are not reproduced here |
Not affiliated
This is an independent, non-commercial open-source project. It is not affiliated with, endorsed by, or sponsored by ISO (International Organization for Standardization), IANA, the IETF, the ITU, the United Nations, SIX Group, or the Unicode Consortium. "ISO" and the ISO standard designations are trademarks of their respective owners and are used here descriptively only, to identify which standard a dataset corresponds to.
Accuracy
Reference data is provided as-is, with no warranty of accuracy or fitness for any purpose, and is not an authoritative substitute for the official publications. Standards change and curated tables can go stale. For anything legally or operationally binding, consult the issuing authority directly. Corrections are welcome — open an issue.
Open source
The application source code is released under the MIT License. Built with TanStack Start, TanStack Table, React 19 and Tailwind CSS.