Free Accounting & Billing Scripts for Web

Kill Bill is a Java library created to deal with payments and money transfers.It was built to work with third-party payment systems and has been used with known Web companies like Groupon and Ning.Kill Bill can power simple one-time money transfers, or...

Since its inception Omnipay was designed to be a framework agnostic toolkit for dealing with various billing systems.This means Omnipay can be used without a PHP framework, or with most of the modern PHP frameworks around.Omnipay is actually a...

Invoice Ninja is a relatively new invoicing application, written on top of Laravel, working and looking like a top of the line commercial service. But it's not. It's open sourced and available for all to use, either via the hosted service provided on its...

Adds support for PayPal Payments Standard and Payments Pro in Django.The module allows users to buy products via PayPal inside Python-based websites or Web apps.Extremely easy to setup, the package comes with lots of documentation.What is new in this...

The Active Merchant library was extracted from Shopify and Spreedly's internal librariers that deal with online credit card payments and open sourced for everyone to use. For the full list of supported direct and offsite payment gateways, please...

It is written in PHP, uses MySQL as backend and it has multilingual and multi-currency support.What is new in this release:Voiding an allocated currency invoice doesn't clear Exchange account Fixed a check that company logo exists when using...

django-payments is a Python library suitable for handling online payments.The library uses third-party services to transfer the money from one account to another and its code is only a generic system for handling common operations.Third-party payment...

ClassyPaypal uses the PayPal API to allow developers to customize various facets of the PayPal buttons, starting from their visual style and ending with various transaction details.The buttons can be customized either the plugin's jQuery plugin...

The Anchor PHP app can be used to create invoices and then send them to your clients.Clients can then opt to pay using a classic check or wire transfer, or utilize an online payment service like PayPal or Stripe.Administrators can manage multiple clients...

Payola is a RoR gem for handling billing operations via the Stripe payments processing service. The library supports one-time transactions and auto-renewing subscription plans, and can handle payment operations using async calls in the application's...