The latest articles on DEV Community by Ajeet Prasad (@ajeet_prasad_7bff190eb600). https://dev.to/ajeet_prasad_7bff190eb600 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4134323%2F0f313f76-d953-426a-9be1-9f8067abed6b.png https://dev.to/ajeet_prasad_7bff190eb600 en Ajeet Prasad Sun, 20 Sep 2026 16:11:23 +0000 https://dev.to/ajeet_prasad_7bff190eb600/i-built-fnvxtra-a-100-free-offline-first-gst-billing-web-app-published-true-tags-webdev-22 https://dev.to/ajeet_prasad_7bff190eb600/i-built-fnvxtra-a-100-free-offline-first-gst-billing-web-app-published-true-tags-webdev-22 <p>Hey everyone! 👋</p> <p>I am a self-taught teenage developer from India. Over the last few months, I've been working on a big problem: small local retail shops often have terrible internet, causing their billing systems to freeze up during busy checkout hours.</p> <p>To solve this with zero budget, I built and deployed <strong>FnvxTra</strong>—a free, offline-first GST billing and inventory platform.</p> <p><strong>Live Link:</strong> 👉 <a href="https://fnvxtra.in" rel="noopener noreferrer">https://fnvxtra.in</a></p> <h3> 📋 Key Features: </h3> <ul> <li> <strong>Offline-First:</strong> Uses zero-latency local caching. Once loaded, the web app functions completely offline so checkouts never freeze.</li> <li> <strong>Merchant Privacy:</strong> Because it runs locally, data stays safely on the store owner's browser.</li> <li> <strong>Automated GST:</strong> Handles tax splits and inventory lookups instantly.</li> <li> <strong>Thermal Printing:</strong> Integrates smoothly with standard retail receipt printers.</li> </ul> <h3> 🛠️ The Tech Stack </h3> <p>To keep this project 100% free with zero investment, I built it using frontend web technologies and hosted it entirely on <strong>Vercel</strong>.</p> <h3> 💬 I need your expert feedback! </h3> <p>As a young developer, I don't have a marketing budget. I am looking for my first 10 tech-savvy users or testers to check it out. </p> <p>Could you open the app and tell me:</p> <ol> <li>Does the offline caching load smoothly for you?</li> <li>How can I improve the UI layout for a busy shopkeeper?</li> <li>Are there any edge-case bugs you found while creating dummy invoices?</li> </ol> <p>Thank you for supporting a student developer! 🚀</p> javascript privacy showdev webdev