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
Metronome is a usage-based billing and invoicing platform for SaaS companies. It meters events, enforces pricing rules, generates invoices and revenue reports, and integrates with data warehouses, CRMs, and accounting systems.
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
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. 2 of 2 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.