Docusage is a powerful and intuitive tool designed for creating, managing, and tracking invoices and documents. Built with modern web technologies, it offers a seamless experience for freelancers and small businesses. This open-source project provides a comprehensive solution for document management with features such as an Invoice Builder that allows users to create professional invoices with customizable themes. The Dashboard feature helps track earnings, expenses, and document status, while the Multi-Theme Support offers a variety of themes including Clean, Modern, Creative, and Corporate. Additionally, Dark Mode is fully supported across all interfaces and invoice themes, and users can export their invoices as high-quality PDFs. The tech stack includes Next.js, TypeScript, Tailwind CSS, PostgreSQL via Neon, Drizzle ORM, Better Auth, Zustand, Radix UI, and Lucide Icons. Docusage is designed to enhance productivity and streamline document management processes.