invoice-generation

Generate PDFs effortlessly with the open-source ComPDF Generation SDK. Design HTML-based templates to produce business-critical documents, such as contracts, invoices, reports, and certificates with ease.

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.

Emboss — precision PDF generation for Python. Declarative specs, Knuth-Plass typography, PDF/UA tagging, deterministic output.

Free and open source Invoice-System-In-PHP

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

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.

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.

Order & invoice management for Symfony, ideal for SaaS, services, and digital products.

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.

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

Multi-company water consumption tracking with vendor management, attendance-based billing, and invoice generation

Generate custom invoices. Hosted on Cloudflare Workers.

A feature-rich Django POS System for Galos Gadget Hub. Handles multi-branch inventory, barcode scanning, credit-approved installments, warranty management, and supplier contracts. Real-time analytics dashboard with CSV exports & audit logs. Production-ready deployment with custom SSL.

Multi-vendor corporate food management with attendance integration, menu pricing, and automated billing

🛒 Manage inventory effectively with this Python-based system for tracking and restocking products, complete with invoicing and sales features.

Sparks Foundation (GRIPsept21)

Production-style AI agent for automated contract-to-invoice pipeline with rule-based computation and validation

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.

Bulk-generate invoices from a data source

A Python-based console application for managing skin care product sales and inventory, featuring VAT calculation, promotional offers, invoice generation, and file-based data storage using a modular programming approach.