Streamline Billing, Manage Subscriptions & Collect Payments

Kill Bill has automated the world's most complex billing problems. And it’s open-source, so it’s yours.

Kill Bill is the trusted open-source billing & payment solution for organisations of all sizes, from startups to F500 companies.

Product

What you can do
with Kill Bill

Kill Bill can fulfill the billing and payment needs of nearly any online business:

Scale your billing and payment infrastructure and grow your business

Access real-time analytics and financial reports

Control your business and client data, avoid vendor lock-in

Subscription Billing

Experience unrivalled versatility with Kill Bill Subscription Billing, giving you complete control over subscriptions and pricing models, including usage-based billing, to support your unique business needs.

View Subscription Billing

Payment Platform

Take control of your payments strategy with Kill Bill, easily integrating with payment gateways, issuing banks, and fraud tools via its robust partner ecosystem and extensible plugin interface.

View Payment Platform

Admin User Interface

Kaui is a robust, user-friendly back-office web-based UI for customer success, finance, RevOps, and developer teams to easily configure price books and manage subscriptions & payments.

View Kaui

Features

You can deploy, customize
and extend Kill Bill

This is all possible because Kill Bill is open-source.

Headless payment integrations

Support for all major payment gateways and methods, as well as alternative payment methods and e-currencies.

Native integration with Adyen, Stripe, Braintree, and PayPal. For more information on payment plugins in general, see the Payment Plugin Guide.

View Docs

Own Your Billing Data

Avoid lock-in: Kill Bill gives you complete ownership of your billing data, as opposed to alternative SaaS solutions.

Unleash the Full Potential with Customizable Plugins

Kill Bill Plugins enable developers to create isolated code that can interact with the Kill Bill platform in various ways.

This includes receiving bus events, making API calls to Kill Bill, and being called by the platform through Plugin APIs after proper registration.

View Docs

“Kill Bill has been amazing to work with. They gave us a solid billing and payment platform flexible enough to support all of the Carfax use cases that other solutions costing 6 figures were not able to provide.”