Open-source billing infrastructure for usage metering, subscriptions, invoicing, and hybrid pricing via an API and web interface.

10.4k stars728 forksAGPL-3.0last commit Actively maintained
Maxio is a SaaS revenue platform that combines Chargify's subscription billing with SaaSOptics' financial operations to manage subscriptions, invoicing, revenue recognition, metrics, and revenue reporting for B2B SaaS businesses.
Open-source billing infrastructure for usage metering, subscriptions, invoicing, and hybrid pricing via an API and web interface.

10.4k stars728 forksAGPL-3.0last commit Actively maintained
Open-source, modular billing and payments platform for subscriptions with real-time analytics, APIs, and plugin extensibility.
5.7k stars956 forksApache-2.0last commit Actively maintained
Self-hosted open-source billing, invoicing, payments, and client management platform for hosting and online service businesses.

1.7k stars343 forksApache-2.0last commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 3 of 3 shipped a commit in the last six months. Licences in this list: AGPL-3.0, Apache-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Billing & Subscriptions.