> ## Documentation Index
> Fetch the complete documentation index at: https://docs.unibee.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

Welcome to UniBee, the most advanced open-source billing software designed specifically for SaaS businesses. UniBee offers a user-friendly and cost-effective alternative to closed-source, expensive, and complex solutions like Recurly, Chargebee, and Paddle.

This documentation library will guide you through the process of installing UniBee and customizing your entire billing system from scratch.

## ✨ Features

* **Subscription Management**: Manage your subscriptions with ease. Create, update, and cancel subscriptions with a few clicks.
* **Invoicing**: Automatically generate and send invoices to your customers.
* **Billable metrics**: Track your billable metrics and generate reports to analyze your business performance.
* **Product and plan management**: Create and manage your products and plans with ease.
* **Webhooks**: Receive real-time notifications about events that happen in your account.
* **User management**: Manage your users and their permissions with ease.
* **Reports**: Generate reports to analyze your business performance.
* **Analytics**: UniBee Analytics gives you a single place to understand subscription revenue, customer value, and retention. It combines subscription-based metrics, configurable calculation rules, and drill-down views so you can see what changed and why. Read the [Analytics overview](/documentation/analytics/analytics-overview) for revenue metrics, customer LTV, and admin settings.
* **Transaction management**: Manage your transactions and refunds with ease.
* **Discounts**: Create and manage discounts for your customers.
* **Multiple payment gateways**: Support for various payment gateways including Stripe, PayPal, Changelly, Wire Transfer, and more. See [Supported Payment Gateways](/documentation/business-integration/supported-payment-gateways) for a complete list.
* **Flexible business integration**: We already have a [Checkout Portal](/documentation/business-integration/checkout-purchases) for you, or you can integrate UniBee with your existing systems using our [API](/api-reference).

## 🚀 Quick Start Integration

If you're new to UniBee and want to integrate it into your application, we recommend starting with our [Integration Workflow Guide](/documentation/business-integration/integration-workflow). This comprehensive guide walks you through:

* **New Customer Onboarding**: Setting up checkout flows and handling customer registration
* **Subscription Management**: Enabling customers to view and manage their subscriptions
* **Webhook Integration**: Setting up event notifications for real-time synchronization
* **Testing**: Using the Sandbox environment to test your integration before going live

The guide provides step-by-step instructions, code examples, and best practices to help you seamlessly integrate UniBee into your business system.

## Data migration resources

* [Data Migration Guide](/documentation/business-integration/data-migration-guide) – How to import users, plans, active subscriptions, and historical data, plus export options and API examples.