CNAB Converter

Convert Remittance files (CNAB 240/400) to simulated Return files

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Supports .rem files (CNAB 240/400)

Fields Changed in Conversion

About the CNAB Converter

The Box4Dev CNAB Converter is a specialized tool for developers and QA analysts working with Brazilian banking systems. It converts remittance files (CNAB 240/400) into simulated return files, allowing you to test reconciliation logic, payment write-offs, and other processes without depending on a real banking environment.

All processing happens 100% in your browser (client-side), ensuring the security and privacy of your data. Supports CNAB 240 and CNAB 400 layouts for Bradesco and Itaú banks.

Frequently Asked Questions (FAQ)