InvoicePlane

InvoicePlane is a self-hosted, open source web application for managing your billing workflow, from quotes to invoices and payments. It also includes CRM-like client management and configurable templates for email and PDF output.

Key Features

• Create, send, and manage quotes and invoices
• Track payments and invoice statuses, with reminders
• Client management with contact details, notes, and custom fields
• Customizable themes and configurable email/PDF templates
• Reporting to review billing and financial activity
• Multi-language interface with community translations
• Optional integrations for online payments (for example PayPal and Stripe)
• Support for generating eInvoices (version-dependent)

Use Cases

• Freelancers and small businesses issuing recurring or one-off invoices
• Teams needing a lightweight billing tool with basic customer records
• Organizations that want an on-premise invoicing system with customizable templates

Limitations and Considerations

• Primarily aimed at small to medium billing workflows; advanced accounting features are limited
• Payment provider options depend on available gateways and configuration

InvoicePlane provides a practical invoicing and client-management workflow with a straightforward web UI and flexible customization. It’s a good fit for users who want control over billing data and a simple, extensible PHP-based application.