Reference guides

Tool-first guides for real-world developer data.

Short, practical reference pages for ValidoHub workbenches: what the browser can prove, what stays official, and which live tool to use next.

Guide family

Global formats and APIs

Data contracts JSON formatting

JSON formatting guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Data contracts JSON Schema validation

JSON Schema validation guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Tokens JWT decoding

JWT decoding guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Encoding Base64 encoding

Base64 encoding guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Encoding URL encoding

URL encoding guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Developer QA Regex testing

Regex testing guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Banking IBAN validation

IBAN validation guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Banking fixtures IBAN generation

IBAN generation guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Fixtures UUID generation

UUID generation guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Security Webhook signatures

Webhook signatures guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Security HTTP security headers

HTTP security headers guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Privacy Secret and PII redaction

Secret and PII redaction guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Tax identifiers EU VAT number checks

EU VAT number checks guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Banking SWIFT/BIC structure

SWIFT/BIC structure guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Documents MRZ passport parsing

MRZ passport parsing guide for browser-only debugging, fixture handling, developer output, and production boundary decisions.

Guide family

Identity and tax identifiers

Personal identifiers Poland PESEL

Poland PESEL guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Tax identifiers Poland NIP

Poland NIP guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Business identifiers Poland REGON

Poland REGON guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal identifiers Brazil CPF

Brazil CPF guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Business identifiers Brazil CNPJ

Brazil CNPJ guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal identifiers Mexico CURP

Mexico CURP guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Tax identifiers Mexico RFC

Mexico RFC guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal identifiers Spain DNI

Spain DNI guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Foreign resident identifiers Spain NIE

Spain NIE guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Tax and company identifiers Spain NIF / CIF

Spain NIF / CIF guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Business identifiers France SIREN

France SIREN guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Establishment identifiers France SIRET

France SIRET guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

VAT identifiers France TVA

France TVA guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal tax identifiers Germany Tax ID / IdNr

Germany Tax ID / IdNr guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

VAT identifiers Germany USt-IdNr / VAT

Germany USt-IdNr / VAT guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal identifiers Netherlands BSN

Netherlands BSN guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Business identifiers Netherlands KVK

Netherlands KVK guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

VAT identifiers Netherlands BTW / VAT

Netherlands BTW / VAT guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal identifiers Italy Codice Fiscale

Italy Codice Fiscale guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

VAT identifiers Italy Partita IVA

Italy Partita IVA guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Business identifiers Switzerland UID

Switzerland UID guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal identifiers Switzerland AHV / AVS

Switzerland AHV / AVS guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal tax identifiers Ukraine RNOKPP

Ukraine RNOKPP guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Personal identifiers Czechia Rodne cislo

Czechia Rodne cislo guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Tax identifiers Chile RUT

Chile RUT guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Tax identifiers Colombia NIT

Colombia NIT guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Guide family

Banking and payment fixtures

Banking Poland IBAN / NRB

Poland IBAN / NRB guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Payments Brazil Pix

Brazil Pix guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Banking fixtures France IBAN and RIB

France IBAN and RIB guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.

Banking fixtures Country IBAN generators

Country IBAN generators guide for local browser checks, safe fixtures, parser evidence, and the official boundary developers must preserve.