Welcome to the Invoice Generator – a sleek, modern web app designed to simplify your billing process! Built with HTML, CSS, and JavaScript, this tool helps freelancers and businesses create professional invoices in seconds. With automatic calculations, PDF export, and a responsive design, you can generate invoices anytime, anywhere – no software installation required.

Key features include: dynamic item management, real-time tax/discount calculations, client/company profiles, and dark/light mode. Whether you're on desktop or mobile, our intuitive interface ensures a smooth experience. Ready to streamline your invoicing? Let’s get started! 🚀

You may also check this simple HTML, CSS and JavaScript project:

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🔑 Key Features:

🔹 Dynamic Invoice Creation

• Add, remove, and edit line items in real-time.

• Automatic calculation of subtotal, tax, discount, and grand total.

🔹 Professional PDF Export

• Download invoices as PDF with a single click (using jsPDF & html2canvas).

• Print-ready formatting.

🔹 User-Friendly Interface

• Dark/Light mode toggle (saves preference).

• Responsive design (works on desktop, tablet, and mobile).

• Form validation for accurate data entry.

🔹 Client & Company Management

• Store company details for reuse.

• Manage client information efficiently.

🛠 Technologies Used:

Frontend:

• HTML5 (Structure)

• CSS3 (Styling with Flexbox & Grid)

• JavaScript (Dynamic calculations & interactivity)

Libraries:

• jsPDF (PDF generation)

• html2canvas (Converts HTML to image for PDF export)

• Font Awesome (Icons)

📋 How to Use:

1. Enter Invoice Details

• Fill in Invoice #, Date, Due Date.

• Add Company & Client Information.

2. Add Invoice Items

• Click "Add Item" to insert products/services.

• Enter Description, Quantity, Price, and Tax Rate.

3. Adjust Totals

• Set Tax Rate (%) and Discount ($) if needed.

• The system auto-calculates Subtotal, Tax, and Total.

4. Export or Print

• Save as PDF (Download a professional invoice).

• Print Invoice (Directly from the browser).

5. Toggle Theme (Optional)

• Switch between Light/Dark mode for better visibility.

Sample Screenshots of the Project

Landing Page (Forms)

Sample Invoice

How to Run?

• Download the provided source code zip file.
• Extract the downloaded zip file.
• Open the html file and you are now ready to go!

Video Demonstration for Installation/Setup:

Conclusion:

In conclusion, this Invoice Generator provides a free, efficient, and professional solution for all your invoicing needs—combining sleek design with powerful functionality to save you time and elevate your billing workflow. Whether you're a freelancer, small business owner, or entrepreneur, this tool simplifies the invoicing process while ensuring accuracy and polish. Try it today and experience hassle-free invoice creation at your fingertips! 🚀💼

That's it! I hope this "Invoice Generator Using HTML, CSS and JavaScript" will assist you on your  programming journey, providing value to your current and upcoming projects.

For additional tutorials and free source codes, explore our website.

Enjoy Coding :>>