OpenInvoice Documentation

Complete guides for using and developing with OpenInvoice. Learn how to manage invoices, customers, payments, and more.

Documentation Sections

Getting Started

New to OpenInvoice? Start here to learn the basics, set up your account, and create your first invoice.

User Guide

Comprehensive guides for end users covering invoices, customers, products, payments, and all features.

Developer Guide

Technical documentation for developers including setup, architecture, integrations, and deployment.

Troubleshooting

Solutions to common issues, payment problems, email delivery issues, and frequently asked questions.

Invoice Management

Create, edit, and manage invoices with a beautiful interface. Track status, generate PDFs, and share invoices securely.

Recurring Invoices

Set up recurring invoices and subscriptions with flexible scheduling. Automated generation and email sending.

Payment Processing

Accept payments via Stripe Connect, crypto (XRP), and more. Support for payment plans, installments, and partial payments.

Email Management

Send invoices via email with tracking and engagement metrics. Professional HTML templates and delivery status.

Analytics & Reports

Visual insights into your invoicing with charts, statistics, forecasting, and customer lifetime value analysis.

Branding & Templates

Customize company branding (logo, colors, fonts) and create multiple invoice templates with custom layouts.