Kill Bill

No phone app

6.3No. 34 of 68
in Payment Processing Software

Recognised40% of the score20
Phone app26% of the score0
Documented20% of the score90
Free plan14% of the score100

Free plan: Yes
Runs on: api, Linux, Mac, self-hosted, Web, Windows

Summary

Kill Bill is an open-source billing platform with APIs for pricing models, subscriptions, invoices, and payment gateway connections. It supports recurring subscriptions and usage-based billing. Plugins link its payment platform with gateways, issuing banks, and fraud tools, while the web-based Kaui back-office interface is used to configure price books and manage subscriptions and payments. Named integrations include Stripe, Adyen, PayPal, Braintree, GoCardless, Coinbase, Avalara, and Vertex. Docker and Tomcat are installation options, and the software can run on Windows, Mac, or Linux computers, or on a Linux cloud server. Security controls described by the maker include encryption at rest and in transit, TLS, AES-256 stored-data encryption, audit logs, role-based access, and tenant isolation. Technical controls are intended to help enterprises meet SOC 2 and PCI-DSS requirements. The self-hosted open-source option includes community support, but customers operate and upgrade it; paid support tiers are separate. AWS Marketplace is listed at about $40/mo plus AWS infrastructure costs, while hosted-platform pricing uses a separate commercial model.

Who it is for

It may suit online businesses and teams that need customizable billing, including startups and growth-stage companies. It is also relevant to organizations willing to manage a self-hosted deployment.

What is good

Supports subscriptions and usage-based billing.
Kaui provides a web-based back-office interface.
Offers integrations through payment plugins.
Runs on Windows, Mac, and Linux.

What to know first

Self-hosted customers operate and upgrade the software.
Community support is included for the self-hosted option.
AWS Marketplace pricing adds infrastructure costs.
Hosted-platform pricing follows a separate commercial model.

Verdict

Kill Bill offers programmable billing with a broad set of deployment choices and payment integrations. Self-hosting provides infrastructure control but puts operation and upgrades on the customer.

Kill Bill plans and pricing

All plans

Self-Hosted Open Source Not published Self-hosted deployment · Open-source Kill Bill core · Full control of infrastructure and data killbill.io · 19 Sept 2026

Self-Hosted Open Source Free Self-hosted · 100% open-source · You operate infrastructure and upgrades killbill.io · 30 Sept 2026

Hosted Platform (ChaChing) Not published Separate commercial model Fully managed · Same Kill Bill APIs and data model killbill.io · 30 Sept 2026

AWS Marketplace Not published ~$40/mo, plus AWS infrastructure costs Runs in your AWS account · You operate the stack killbill.io · 30 Sept 2026

Compared on payment processing software

Free plan: Yeskillbill.io
Paid from: $40/mokillbill.io

Facts

Product: Kill Bill is an open-source, programmable billing platform with APIs for pricing models, subscriptions, invoices, and payment gateway integrations.docs.killbill.io · 30 Sept 2026
Subscription billing: It supports subscriptions and pricing models including usage-based billing.killbill.io · 30 Sept 2026
Payment platform: Its payment platform connects to payment gateways, issuing banks, and fraud tools through plugins.killbill.io · 30 Sept 2026
Admin interface: Kaui is a web-based back-office interface for configuring price books and managing subscriptions and payments.killbill.io · 30 Sept 2026
Integrations: The maker lists Stripe, Adyen, PayPal, Braintree, GoCardless, Coinbase, Avalara, and Vertex among its integrations.killbill.io · 30 Sept 2026
Deployment: The maker provides Docker and Tomcat installation options and says Kill Bill can run on Windows, Mac, or Linux computers, or on a Linux cloud server.docs.killbill.io · 30 Sept 2026
Security: The overview describes encryption at rest and in transit, TLS communications, AES-256 stored-data encryption, audit logs, role-based access controls, and multi-tenant isolation.killbill.io · 30 Sept 2026
Compliance: The maker says Kill Bill provides technical controls intended to help enterprises meet SOC 2 and PCI-DSS requirements.killbill.io · 30 Sept 2026
Support: The self-hosted open-source option includes community support, while paid support tiers are separately purchased for customer-managed deployments.killbill.io · 30 Sept 2026
Limits: Self-hosting requires the customer to operate and upgrade Kill Bill; the maker says hosted-platform pricing follows a separate commercial model.killbill.io · 30 Sept 2026
Intended users: The maker describes Kill Bill as serving online businesses, teams needing customization, startups, and growth-stage companies.killbill.io · 30 Sept 2026