ERPNext
A comprehensive, self-hosted ERP system for managing finances, HR, inventory, and more. Ideal for small to large businesses seeking full control over their operations.
ERPNext is an open-source alternative to:

ERPNext is a complete, open-source ERP solution designed to streamline business operations across finance, HR, inventory, sales, and project management.
Key Features
- Finance & Accounting: Invoicing, expense tracking, budgeting, and financial reporting.
- Human Resources: Employee management, leave tracking, payroll, and recruitment.
- Inventory Management: Stock tracking, warehouse management, and procurement.
- Sales & CRM: Lead management, sales pipelines, and customer support.
- Project Management: Task tracking, Gantt charts, and resource allocation.
- Manufacturing: Bill of materials, production planning, and quality control.
- Self-Hosted: Full control over data with on-premise or private cloud deployment.
- Extensible: Customizable workflows, fields, and modules to fit unique business needs.
Tech / Self-Hosting
ERPNext is built on Python, MariaDB, and Frappe Framework. It can be deployed on any Linux server or cloud platform using Docker, Kubernetes, or traditional installation methods. The system supports PostgreSQL as an alternative database and offers extensive documentation for customization and scaling.