SolidInvoice is an open-source, self-hosted invoicing application designed to help businesses and freelancers efficiently manage their billing processes. It offers a clean and intuitive interface for creating, sending, and tracking invoices, quotes, and payments. With features such as client management, tax handling, multi-currency support, and customizable templates, SolidInvoice provides a flexible solution tailored to meet various invoicing needs. Being open-source, it allows users full control over their data and the ability to customize the software to fit their specific requirements.

Built with modern web technologies, SolidInvoice emphasizes simplicity and ease of use without sacrificing powerful functionality. It supports integration with popular payment gateways to facilitate secure online payments and enhances workflow automation through recurring invoices and notifications. Overall, SolidInvoice is a practical tool for anyone looking to streamline their invoicing tasks while maintaining control through a self-hosted platform.