Kill Bill

Kill Bill is an open-source subscription billing and payments platform for online businesses. It runs in your own infrastructure so business and client data stays under your control, with no vendor lock-in and no per-transaction or revenue-based fees.

It covers multiple subscription billing models, trials and promotional discounts, usage metering, a catalog with plans and tiers, wallets and prepaid credits, and a plugin framework. Native payment gateway integrations include Adyen, Stripe, Braintree, and PayPal. The Kaui back-office UI, multi-tenancy, white-label support, RBAC, and real-time analytics with financial reports are included.

It is written in Java and licensed under Apache-2.0. Deploy on premises or in the cloud, set up with Docker in minutes, or use the AWS one-click deployer.