Killbill by killbill
Open-Source Subscription Billing & Payments Platform
About Killbill
From the project's README at github.com/killbill/killbill. Lightly cleaned for readability; for the full source see the upstream repo.
Kill Bill - Open-Source Subscription Billing & Payments Platform
Kill Bill has been the leading Open-Source Subscription Billing & Payments Platform over the past 10 years. The platform exists to help you scale your billing and payment infrastructure and to grow your business. Out of the box, you have access to real-time analytics and financial reports. And because you are in control of your business and client data, you avoid any vendor lock-in.
Kill Bill can fulfill the billing and payment needs of nearly any online business. Reliable and robust, it has proven itself over time with even the largest SaaS and e-commerce organizations. Open-Source + SaaS billing = OpenSaaS billing
You can test various subscription billing models to see which is most profitable for your business. It is easy to run trials and accommodate even the briefest promotional discounts. Your business doesn't need to rely on the uptime or processing speed of a third-party SaaS provider. Kill Bill is not an all-in-one solution. Instead, it is highly modularized, enabling you to disable functionality you don't need or replace functionality with one of your existing systems. On premises or in the cloud, K
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 5.5k | github.com/killbill/killbill |
| GitHub forks | 915 | github.com/killbill/killbill |
| Docker Hub pulls | 758k | hub.docker.com / killbill |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 13.5 years | since Oct 2012 |
| Last commit | 2 days ago | May 4, 2026 |
| Releases shipped | 152 | last: 14 days ago |
| Funding links | 1 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
Ready to self-host Killbill?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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