Utility library for validation of PESEL, NIP, REGON, identity card etc. Aimed mostly at Polish enviroment. [Polish] Walidacja numerów pesel, nip, regon, dowodu osobistego.

Elixir library for validate polish numbers: PESEL, NIP, REGON, IBAN (PL)

PESEL, NIP and REGON validators for Angular

A library for validating PESEL, NIP and REGON numbers.

Biblioteka .NET do pobierania danych firm po NIP, REGON lub KRS bez klucza API, zwracająca dane w formacie JSON

Simple lightweight library written in Kotlin to validate polish identification numbers like: NIP, PESEL, REGON (9-digit and 14-digit).

A set of Backbone-Forms validators

Elixir library for REGON number.