Most devs reach for React immediately. I chose a different path for this project. In this series, I'll explain how I used Vanilla JS Proxies to build a professional utility that out-performs most SaaS tools in privacy and speed.

deBugger360 / invoice-generator

ProInvoice is a lightweight, client-side invoice generator built with Vanilla JS. WYSIWYG interface for freelancers & small businesses. No backend, total data privacy.

ProInvoice: Privacy-First Client-Side Invoice Generator

ProInvoice is a lightweight, fully client-side invoice generation tool built with modern Vanilla JavaScript. Designed for freelancers and small businesses, it offers a professional, "What You See Is What You Get" (WYSIWYG) experience without the need for a backend, ensuring total data privacy.

Live Demo on GitHub Pages

🚀 Key Features

Real-time WYSIWYG Editor: See your changes update instantly on an A4-formatted preview.

Privacy-First: No data ever leaves your browser.…