e-invoice

电子发票整理与报销准备工具：从邮箱批量收集 PDF/OFD/XML 发票，OCR 识别、分类归档并生成 Excel 汇总；提供 Windows/macOS 桌面版与 DSH 插件。

中華民國統一編號、身分證字號驗證規則

🇪🇺 💶 Generate e-invoices (E-Rechnung in German) conforming to EN16931 (Factur-X/ZUGFeRD, UBL, CII, XRechnung aka X-Rechnung) from LibreOffice Calc/Excel data or JSON.

Python lib for Factur-X, the e-invoicing standard for France and Germany

📝 Genera, firma, envía y recibe facturas electrónicas sin necesidad de ninguna librería adicional

Simple, yet powerful compliance solutions for Indian businesses

台灣電子發票統一 SDK：一套與供應商無關的介面，支援 Amego、ECPay 綠界、ezPay 藍新與財政部平台。Unified e-invoice (電子發票) SDK for Taiwan — one interface, multiple providers.

PHP library to manage your Factur-X / ZUGFeRD 2.0 PDF invoices files

SDK oficial da NFE.io para Node.js (TypeScript, zero dependências) para emitir NFS-e — nota fiscal de serviço eletrônica — e consultar CNPJ e CEP via API. Documentos fiscais do Brasil com async/await nativo.

A desktop application, that creates and validates ZUGFeRD invoices.

A PHP package for managing italian e-invoice and notice XML formats. (Pacchetto PHP per gestire il formato XML di fatture e notifiche come richiesto dal SdI).

A Node.js library for creating ZUGFeRD/Factur-X compliant documents. Generating XML and embedding it into PDF/A files, enabling seamless e-invoicing and digital document compliance.

A library to create, read and validate ZUGFeRD compliant invoices. Available for Java and .NET

Collection of real, sample and test ZUGFeRD invoices, partly with artificial errors

Go library for accessing the RO e-Factura and RO e-Transport APIs.

A TypeScript client library (SDK) for seamless integration with the Malaysian MyInvois REST API, enabling developers to build custom e-invoicing solutions.

MyInvois Gateway provides a simplified REST endpoint for submitting MyInvois documents using standard JSON. It handles UBL translation, hashing, encoding, formatting, and signing, powered by the `myinvois-client` library.

SDK oficial da NFE.io para PHP 8.2+ (zero dependências) para emitir NFS-e — nota fiscal de serviço eletrônica — e consultar CNPJ e CEP via API. Documentos fiscais do Brasil.

ZATCA e-invoicing REST API for Saudi Arabia. Compliance CSID, invoice reporting & clearance without Fatoora SDK. PHP 8.4+ | Docker | Redis

XRechnung/ZUGFeRD/Peppol BIS Billing Implementation for Delphi and FreePascal