The latest articles on DEV Community by Atul Verma (@atul_verma_9b425fa7292242). https://dev.to/atul_verma_9b425fa7292242 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3872169%2Fe4bcd297-c262-42b6-b2b6-75605f7f091d.png https://dev.to/atul_verma_9b425fa7292242 en Atul Verma Fri, 10 Apr 2026 16:50:28 +0000 https://dev.to/atul_verma_9b425fa7292242/how-i-built-a-free-invoice-generator-with-nextjs-47-pages-zero-database-750-total-cost-2f32 https://dev.to/atul_verma_9b425fa7292242/how-i-built-a-free-invoice-generator-with-nextjs-47-pages-zero-database-750-total-cost-2f32 <p>I built a free invoice generator that has 47 static pages, zero database, and costs $7.50/year to run. Here's how.</p> <h2> The Stack </h2> <ul> <li>Next.js 16 (App Router)</li> <li>TypeScript</li> <li>Tailwind CSS</li> <li>jsPDF (client-side PDF generation)</li> <li>Vercel (free tier hosting)</li> <li>Cloudflare ($7.50/year domain)</li> </ul> <h2> The Architecture </h2> <h3> 47 Static Pages at Build Time </h3> <p>I used <code>generateStaticParams</code> to create pages for:</p> <ul> <li> <strong>15 industry-specific templates</strong> — freelance, contractor, photography, construction, plumbing, electrician, etc. Each page has sample line items, tips, and FAQs specific to that industry.</li> <li> <strong>10 country pages</strong> — India (GST), UK (VAT), USA (Sales Tax), Australia (ABN/GST), UAE (TRN/VAT), etc. Each page shows local tax rules, required invoice fields, and popular payment methods.</li> <li> <strong>5 how-to guides</strong> — "how to create an invoice", "how to invoice as a freelancer", "how to add tax to an invoice", etc.</li> </ul> <p>All statically generated. Zero runtime cost. Every page is a separate SEO target.</p> <h3> Lazy Loading Heavy Libraries </h3> <p>jsPDF is ~700KB. Users don't need it until they click "Download PDF". So I lazy load it:</p> <h2> Link </h2> <p>Check it out: <a href="https://freeinvoicegen.org" rel="noopener noreferrer">https://freeinvoicegen.org</a></p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> javascript // Only loads when user clicks download const { generateInvoicePDF } = await import("@/lib/generatePDF"); const doc = generateInvoicePDF(data); doc.save(`${data.invoiceNumber}.pdf`); </code></pre> </div> nextjs typescript webdev tailwindcss