vanilla-js-invoice-generator

Invoice Generator JS

A lightweight and easy-to-use JavaScript invoice generator that works with Vanilla JS, React, Next.js, Angular, and more. Generates a professional invoice in HTML and allows users to download it as PDF using html2pdf.js.

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🚀 Features

• 📄 Generate professional invoices
• 📦 Works in React, Next.js, Angular, and Vanilla JS
• 🧾 Add client and company details, items, taxes
• 📥 Download invoice as PDF (via html2pdf.js)
• 🎯 Easy integration with any frontend project

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📦 Installation

Install via npm:

npm install vanilla-js-invoice-generator

Or include directly via CDN:

<script src="https://cdn.jsdelivr.net/npm/vanilla-js-invoice-generator@latest"></script>

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🛠️ Usage

1. Create a Container

Add a container in your HTML where the invoice will be rendered:

<div id="invoice-container"></div>

2. Use generateInvoice

Import and call the function:

import { generateInvoice } from 'vanilla-js-invoice-generator';

generateInvoice('invoice-container', {
  companyName: "Forange Inc",
  companyAddress: "Nashik, India",
  companyPhone: "[phone]",
  companyEmail: "[e-mail]",

  clientName: "Ravi Pandey",
  clientCompany: "Freelancer",
  clientAddress: "Patna, Bihar",

  invoiceDate: "28/05/2025",
  invoiceNumber: "INV-1001",

  items: [
    { name: "Website Development", qty: 1, price: 5000 },
    { name: "Hosting Services", qty: 1, price: 2000 }
  ],

  taxRate: 18
});

3. Enable PDF Download

Make sure to include html2pdf.js for PDF support:

<script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>

A "Download PDF" button will automatically appear at the bottom of the invoice.

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🖼️ Output Sample

• Company and client information
• Table of items with quantity, price, and total
• Tax calculation
• Download PDF button

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🔧 Configuration Options

Option	Type	Description
companyName	string	Your company name
companyAddress	string	Company address
companyPhone	string	Contact phone
companyEmail	string	Contact email
clientName	string	Client name
clientCompany	string	Client company name
clientAddress	string	Client address
invoiceDate	string	Invoice creation date
invoiceNumber	string	Unique invoice number
items	array	List of invoice items with name, qty, price
taxRate	number	Tax percentage (e.g. 18)

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🧪 Test Locally

Create a test.html file:

<script src="https://cdn.jsdelivr.net/npm/vanilla-js-invoice-generator@latest"></script>
<script>
  generateInvoice('invoice-container', { ... });
</script>

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👨‍💻 Author

Ravi Pandey
🌐 https://imravidev.vercel.app
📧 [e-mail]

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📄 License

This project is licensed under the MIT License.