FOSSBilling vs Zuora
FOSSBilling and Zuora are both billing and subscriptions software. FOSSBilling is open source under Apache-2.0, with 1.7k GitHub stars. Zuora is a commercial product from Zuora.
Which to pick
- Pick FOSSBilling when
- A small web host or reseller wants a free alternative to WHMCS and accepts beta software.
- Pick Zuora when
- A large company with complex subscription and usage contracts needs billing and ASC 606 revenue recognition at enterprise scale.
Side by side
Billing and client management for hosting providers and other online services, with automated invoices, payment gateways, client area and provisioning extensions.
Enterprise subscription management for quote-to-cash: billing, payments, revenue recognition and collections.
The project itself says it is beta with rough edges and limited support.
Implementation is long and costly, and it is too heavy for small SaaS companies.
Usable
Production-ready
Self-hosted server
Cloud service
PHP, Twig, TypeScript and MySQL
Not published
Open source, Apache-2.0 (permissive)
Closed source, sold by Zuora
You can build it into a product you sell, as long as you keep its copyright notice.
Closed source: you use it under the maker's terms and cannot change or resell the code.
1.7k GitHub stars
315 Wikipedia readers a month on phones
Established: started 4 years ago, latest release 0.8.9.
Not known
Other comparisons
More billing and subscription management systems
Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.