Mint Invoice is “web-based”, “open source”, “paid” invoicing script which can be used to create, send invoices and get paid for your invoices online directly by your customers. Moreover, you can send quotations to your customer, covert it to invoice, once your customer accepts the quotation. You can keep track of all your invoices, quotations as well as account transactions. The interface of Mint Invoice is inspired from “Paypal” which provides simple, elegant way to create Invoices. With quotations, transactions and such other feature, “Mint Invoice” is a complete invoicing application one can use to improve business. It is designed as SPA (Single Page Application) with minimum page refresh & supports Full REST API, which allows you to integrate the application with any other application.