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

WHMCS is a web hosting automation and billing platform that manages client accounts, recurring invoices and payments, domain registration and provisioning, support ticketing and knowledgebase, and integrates with hosting control panels, payment gateways and domain registrars.
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
Open-source PSA for MSPs combining client documentation, ticketing, billing/accounting, and a client portal, with API integrations and optional AI assistance.

990 stars257 forksGPL-3.0last 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: Apache-2.0, GPL-3.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Billing & Subscriptions.