Streamline your shop business with BillGen Online Software
Transform your shop operations with our all-in-one solution. Manage inventory, billing, and customer relationships in one powerful platform.

Instant Invoice Creation
Generate professional invoices in seconds with our intuitive interface. Automatically number and date your invoices for perfect record-keeping.
Mobile Responsive Design
Fully optimized for all mobile devices with intuitive touch controls and adaptive layouts.
Cloud Storage
All invoices are automatically saved in the cloud. Access your documents anytime, anywhere, from any device with internet connection.

Streamline your shop business with BillGen Online Software
Our comprehensive software solution helps shops manage all aspects of their business efficiently. From inventory tracking to customer billing, everything you need in one integrated platform.
Interactive Dashboard
Get a complete overview with all invoices, estimates, and stock counts at a glance.
Smart Cashier System
Easily add new cashiers and manage permissions for bill generation.
Professional Invoices
Create branded invoices with automatic stock tracking and management.
Flexible Estimates
Generate both wholesale and retail estimates with customizable templates.
Advanced Reporting
Filter reports by date range with detailed insights on sales, costs, and profits.
Increase your productivity with BillGen
BillGen is an easy-to-use online invoicing software that lets you quickly send email invoices to customers, download PDF invoices, and view invoice details anytime. Simplify your billing process with BillGen create, manage, and track invoices effortlessly!
Email Invoices
Send professional invoices directly to customers with PDF attachments.
Download PDF Invoices
Download invoice PDFs anytime use or record-keeping.
Invoice History
View and manage all invoice details anytime, with full transaction history.
Stock Management
Track stock levels independently or generate invoices without stock updates.


You Can Change Printer
Our comprehensive software solution allows you to change between different printer types. You can switch between a thermal printer (for 80mm receipts) or a normal printer (for A5 size invoices). The system supports both formats seamlessly.
Printer Compatibility
Supports both thermal printers (commonly used in retail shops, food outlets) and normal printers (for office/computer use). Perfect for various business environments including shops, ships, and other commercial establishments.
Email Configuration Setup
For enhanced security, we recommend using App Passwords instead of your main email password.
Setup Instructions:
- Log in to your email account (Gmail, Yahoo, Outlook, etc.)
- Navigate to Security/Account Settings
- Search for 'App Password' or 'Two-Factor Authentication'
- Generate a new app password for our software
- Copy and paste this password into the Email Settings section
- Test your configuration by sending a sample invoice
Automated Email Invoices
Send professional PDF invoices directly to customers.

Premium Plans
Choose the perfect plan for your business needs
30 DAYS
Premium access plan
LKR 1,699
- Invoice Management System
- Inventory/Stock Management
- Customizable Printer View
- Comprehensive Invoice Reporting
- Date Range and Monthly Invoice Filtering
- PDF Download Capability
- Email Invoice with PDF Attachment
- Multi-Cashier Support
- Real-Time Data Access and Reporting
90 DAYS
Premium access plan
LKR 3,790
- Invoice Management System
- Inventory/Stock Management
- Customizable Printer View
- Comprehensive Invoice Reporting
- Date Range and Monthly Invoice Filtering
- PDF Download Capability
- Email Invoice with PDF Attachment
- Multi-Cashier Support
- Real-Time Data Access and Reporting
12 MONTHS
Premium access plan
LKR 14,590
- Invoice Management System
- Inventory/Stock Management
- Customizable Printer View
- Comprehensive Invoice Reporting
- Date Range and Monthly Invoice Filtering
- PDF Download Capability
- Email Invoice with PDF Attachment
- Multi-Cashier Support
- Real-Time Data Access and Reporting
Contact Us
We're always ready to assist you around the clock
Our Location
Kegalle, Sri Lanka
Phone Number
+94 707 645 303
Email Address
info@ceylongit.online
Working Hours
24 x 7 Hours Service