Playground

Runs in your browser

This page uses the nusaindex package compiled into the page. What you type is checked on your device and is never sent anywhere: the site has no server, analytics, or third-party scripts. Still, prefer the Fill fake data button to typing real personal data.

ValueFill fake data

Type or paste a value to check it.

For a NIK, the result includes the region names from region.fromNik. Invalid values show the error code and, when the text contains full-width or zero-width characters, a hint to call normalize.