Overview
Smart Invoice Generator is a clean, fast, and fully responsive browser based billing tool that allows users to create professional invoices instantly. Built with pure HTML5, CSS3, and vanilla JavaScript with no backend or database required it runs smoothly on any hosting and works directly inside the browser. It is designed for freelancers, small businesses, agencies, and anyone who needs a simple and reliable way to generate invoices within seconds.
Users can add items, set quantities, apply tax and discounts, customize business details, download invoices as PDF or print them instantly. Everything is handled client side making this tool extremely lightweight, secure, and easy to integrate on any website.
✨ Key Features
- Instant Invoice Creation: Add items and generate a complete invoice in real time.
- PDF Export: Download clean and formatted invoices in PDF format with one click.
- Print Ready Layout: Simple print button that formats the invoice perfectly.
- Business Branding: Add company name, logo, address, phone, and client details.
- Tax and Discount Support: Apply custom tax percentages or manual discounts.
- Multiple Currency Support: Enter any currency symbol freely.
- Fully Responsive Design: Works perfectly on desktop, tablet, and mobile.
- No Backend Required: Works entirely in the browser using pure HTML CSS JS.
- Lightweight Code: Clean structure and easy customization for developers.
- Secure: Since everything is client side there is no data storing or server dependency.
⚙️ How to Install
- Download the project folder.
- Make sure
index.html style.css and script.js are in the same directory. - Upload the folder to your hosting like public html or any sub directory.
- Open the tool in your browser and start creating invoices instantly.
How to Use
- 1. Add your business and client details.
- 2. Add invoice items quantity and price.
- 3. Apply discount or tax if needed.
- 4. Preview the final invoice.
- 5. Download as PDF or print directly.
️ Support
- If you need help just contact us through the CodeCanyon support section.
- Regular updates are provided based on real user feedback.
This documentation will guide you through installation, setup, customization, and usage so you can get started instantly.
1. Files Included
You will find the following files in your package
index.html,create-invoice.html,export.html,import.html,invoice-detail.html,invoices.html,settings.html main structure of the toolstyles.css all styles and layout formattingapp.js,invoice-detail.js,invoice-form.js all JavaScript functions used to calculate totals and generate invoicesdocumentation.html this guide
2. Requirements
This tool works on any hosting that supports standard HTML files. No database and no backend are required.
- Any shared hosting or VPS
- Any web server such as Apache or Nginx
- Modern browser for using the tool
3. How to Install
Follow these simple steps
- Download your purchase package
- Extract the zip file
- Upload the entire folder to your hosting inside public html or any subfolder
- Make sure all files remain in the same folder
- Open the tool in your browser to start creating invoices
Example URL
https://yourdomain.com/index.html
4. How to Use
This tool is extremely simple and beginner friendly
- Add your business name, logo, address, phone, and invoice details
- Add client details
- Add items with quantity and unit price
- Tax and discount can be added as needed
- Invoice total is calculated automatically
- Preview the invoice before downloading
- Save as PDF or print directly using the buttons provided
5. Customization
You can customize anything easily
- Colors can be changed in
styles.css - Labels and text can be edited in
index.html,create-invoice.html,export.html,import.html,invoice-detail.html,invoices.html,settings.html - Functions can be modified inside
app.js,invoice-detail.js,invoice-form.js
Tip
Always keep a backup before making changes.
6. Troubleshooting
- PDF not downloading check browser print settings
- Styles not updating clear browser cache
- Calculations wrong make sure you did not edit numeric functions
7. Support
If you face any issues or have questions feel free to contact us through the CodeCanyon support page. Updates are provided based on user feedback.