Billing Book is a PHP/jQuery-based web-based application that allows you to manage your invoices, customers, suppliers, and stock. The application has an Easy POS system for a faster billing system. A very responsive web template has been used, the application contains complete source code and is easy to modify it as per your needs. The application can be ready to install on the local computer or on an online server with an easy installation process.

Demo: https://codecanyon.net/item/billing-book-ultimate-inventory-management-billing-software-with-pos/23552741