ERPNext is a comprehensive open-source ERP (Enterprise Resource Planning) system built on the Frappe Framework. It provides a full suite of business management modules including Accounting, CRM, Buying, Selling, Stock/Inventory, Manufacturing, Projects, Assets, Quality Management, Support, and more. The system uses a metadata-driven architecture where DocTypes (document types) define data models, business logic, and UI behavior. The codebase follows a modular structure with each business domain in its own directory (accounts, buying, selling, stock, manufacturing, projects, etc.). It includes a modern React/TypeScript banking module built with Vite for bank reconciliation and statement importing. The system supports multi-company, multi-currency, multi-language deployments with extensive regional/localization support for tax compliance across many countries. It has a robust patch/migration system for database schema evolution and a comprehensive test suite.
IDURAR is a free, open-source ERP and CRM application built on the MERN stack (MongoDB, Express.js, React.js, Node.js) with Ant Design and Redux. It provides modules for invoice management, payment processing, quote generation, customer relationship management, inventory tracking, and financial reporting. The system features multi-language support (44 languages), PDF generation for business documents, role-based access control, and a responsive user interface. The architecture separates concerns with a RESTful API backend and a modular frontend utilizing React, Redux for state management, and Ant Design for UI components.