PT IBAN Generator

The PT IBAN Generator creates standards-compliant PT IBAN values for testing and development. It accepts bank_code, branch_code, and account_number as inputs and returns a PT IBAN with valid check digits. Conceptually, the tool treats the IBAN as a checksum-protected identifier: it converts alphabetic characters to numeric equivalents, moves the country code to the end, computes a modulo-97 remainder, and derives two check digits so that the final number is divisible by 97 with a remainder of 1. This enables realistic cross-border payment testing, reconciliation, and mock data seeding for PT-based workflows. The tool is particularly beneficial for developers integrating with Portuguese banks, payment gateways, or ERP systems that expect properly formatted IBANs. Its value lies in producing deterministic, compliant values that resemble real-world data without exposing customer information. Core features include input validation (digits-only fields with fixed lengths), optional output formatting (spaces every four characters), and an ISO 13616-compliant calculation pipeline. Use cases encompass sandbox payment API testing, data migration validation, and QA scenarios that require believable yet non-production IBANs.