einvoicing

einvoicing is an open source Ruby gem designed to facilitate the generation of electronic invoices in compliance with European Union standards, specifically targeting the requirements of the French B2B e-invoicing mandate effective from September 2026. The tool enables Ruby and Rails applications to create invoices that conform to EN 16931 and meet the French regulatory need for structured, machine-readable documents, eliminating the validity of paper and non-structured PDF invoices under the new rules.

1. Factur-X format allows embedding structured XML (CII D16B) data within a standard PDF file, making the invoice readable by both humans and machines in a single document. The gem is validated and tested, with evidence of 196 specifications and zero failures, and ensures PDF/A-3 conformance. It also offers integration capabilities for Rails applications, and includes features such as Chorus Pro / PPF client support and SIREN/VAT validators, addressing the needs of businesses required to transmit invoices electronically through certified platforms.

2 or higher, making it accessible to developers working within the Ruby and Rails ecosystems. As an open source project, einvoicing is available for use and contribution without licensing fees, supporting organizations and developers seeking to implement compliant e-invoicing solutions within their own infrastructure.