FOSSBilling

FOSSBilling is a free, open-source billing and client management system designed to help hosting providers and other online service businesses automate invoicing, payments, and customer communication. It provides a web-based interface for managing clients, subscriptions, and common business workflows.

Key Features

• Billing and invoicing with automated invoice generation, reminders, and basic reporting
• Client management for storing customer details and managing communication history
• Multiple payment gateway integrations for collecting online payments
• Extension-friendly architecture for adding integrations and custom functionality
• Responsive web UI for desktop and mobile use
• Multi-language interface powered by community translations

Use Cases

• Hosting providers managing recurring billing, invoices, and customer accounts
• SaaS and subscription services handling subscriptions and payment collection
• Digital services selling licenses, downloads, or recurring maintenance plans

Limitations and Considerations

• The project is under active development and described as beta, so some rough edges and limited support may be expected

FOSSBilling is a community-driven alternative to proprietary hosting automation suites, emphasizing transparency, extensibility, and control over your own data. It is well-suited for organizations that want a self-managed billing stack with room for customization.