FOSSBilling: Free and Open-Source Billing and Client Management System

FOSSBilling: Free and Open-Source Billing and Client Management System

Summary

FOSSBilling is a free, open-source billing and client management system designed to automate invoicing, payments, and client communication for online service businesses. It is particularly popular with web hosting providers but also supports software licensing, digital downloads, and subscription services. This project offers an extensible architecture and a security-focused, responsive user interface.

Repository Info

Updated on February 15, 2026
View on GitHub

Tags

billinghostingclient-managementpaymentsphpopen-sourceself-hosteddocker

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Introduction

FOSSBilling is a powerful, free, and open-source billing and client management system. It empowers online service businesses, especially web hosting providers, to efficiently automate invoicing, manage payments, and streamline client communication. Beyond hosting, FOSSBilling is also suitable for managing software licensing, digital downloads, and various subscription services, offering a flexible solution for diverse business needs.

Installation

Getting started with FOSSBilling is straightforward. The system runs on standard LAMP/LEMP stacks. For detailed and up-to-date system requirements, including specific PHP versions, extensions, and database configurations, refer to the official requirements documentation. A comprehensive, step-by-step Getting Started guide is available to walk you through the installation process. If you're just looking to explore its capabilities without installation, a public demo is also provided.

Examples

FOSSBilling is designed to serve a variety of online businesses. Its core functionalities include:

  • Automated Billing & Invoicing: Generate invoices, send reminders, and access basic financial reports.
  • Comprehensive Client Management: Maintain a central database for all client information and communication history.
  • Extensible Architecture: Easily integrate with other services or add custom features through its extension-friendly design.
  • Multiple Payment Gateways: Support for various payment processors to offer flexibility to your clients.
  • Multi-language Support: A community-powered translation system provides an interface in multiple languages.
  • Responsive User Interface: Ensures usability across desktop and mobile devices.
  • Security-Focused Development: Built with best practices to protect sensitive business and client data.

Why Use FOSSBilling?

Choosing FOSSBilling means opting for a robust, community-driven solution that offers significant advantages. As a free and open-source project, it provides complete transparency and flexibility, allowing businesses to customize and extend the system to fit their unique requirements without vendor lock-in. Its active development, focus on security, and responsive design make it a reliable choice for managing your online service business efficiently. Furthermore, the supportive community and clear documentation ensure that help is always available.

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