
The first open-source ERP designed for high-performance business management and accounting.
OpenConcerto is a comprehensive, open-source Enterprise Resource Planning (ERP) suite tailored for small to medium-sized enterprises (SMEs) looking for high data sovereignty and architectural flexibility. Built on a Java-based stack, it utilizes a client-server architecture that supports leading database engines including PostgreSQL, MySQL, and H2. In the 2026 market, OpenConcerto distinguishes itself by offering a monolithic yet modular system that integrates accounting, CRM, payroll, and inventory management without the per-user licensing costs typical of SaaS alternatives. Its technical superiority lies in its bi-directional synchronization capabilities and the ability to operate in a multi-company, multi-user environment natively. The software complies with stringent European financial regulations, specifically the French NF525 standards for POS security. For organizations prioritizing custom business logic over generic cloud interfaces, OpenConcerto provides an SDK for deep module development, allowing for bespoke integrations with industrial IoT or legacy supply chain systems. As cloud-native architectures become increasingly expensive due to egress fees and subscription bloat, OpenConcerto's ability to be self-hosted on private infrastructure makes it a strategic asset for cost-conscious, data-heavy enterprises.
Allows for the management of multiple legal entities within a single database instance with consolidated reporting.
Verified feedback from the global deployment network.
Post queries, share implementation strategies, and help other users.
A direct-to-accounting point-of-sale interface that handles real-time stock deductions and cash reconciliation.
Native connectors for PrestaShop and other e-commerce platforms to sync orders, inventory, and customers.
Supports FIFO, LIFO, and Weighted Average Cost methods for precise inventory financial reporting.
Java-based SDK allowing developers to inject custom logic into the core ERP engine.
Integrated JasperReports engine for creating complex, pixel-perfect financial documents.
Access control lists (ACLs) that can be restricted down to specific fields or menu items.
Managing raw materials and finished goods across multiple warehouse locations.
Registry Updated:2/7/2026
Perform periodic inventory audits using the POS scanner.
Tracking billable hours and converting them into professional invoices.
Synchronizing physical store sales with an online PrestaShop storefront.