ShopEase is a simple PHP application that allows users to select a product, provide their details, and receive an invoice with VAT, discount, and delivery charges calculated. The application uses Bootstrap for styling.

SuperSaverPOS is a Point of Sale (POS) system designed for supermarket management. This application allows administrators to manage bills, add items to bills, and generate invoices in PDF format. The application also provides an admin panel for managing branch details, cashier information, and discount settings.

Bulk-generate invoices from a data source

PickUp Laundry is a JSP-based web application facilitating laundry service orders. It offers user registration, dynamic service loading, invoice generation, and Razorpay-integrated payments, all with Captcha authentication and search functionality. Includes auto-refresh and consumes Web Services.

Sparks Foundation (GRIPsept21)

A .NET application implementing the Factory Pattern to generate invoices in various formats (PDF, TXT, CSV). Utilizes QuestPDF for creating professional PDF documents and the Repository Pattern for organized and maintainable data access.

This is a cross platform mobile application template for invoice generation and income management for entrepreneurs and freelancers. It was built with Ionic/Angular.

Invoice generation utility using NodeJS/ExpressJS. Handlebars, jQuery, Boostrap and MySQL

BillQuill is a full-stack web-based invoicing application, allowing users to generate, download, and share invoice. Written in NextJS, TypeScript, MongoDB, Prisma, and other fantastic tools.

Free and open source Invoice-System-In-PHP

A Node.js library for creating ZUGFeRD/Factur-X compliant documents. Generating XML and embedding it into PDF/A files, enabling seamless e-invoicing and digital document compliance.