Open Source
We build on the work
of thousands
Commet exists because developers around the world share their code, their knowledge, and their time with everyone. This page is our way of saying thank you.
Built with
Standing on the shoulders of open source
Every line of Commet depends on projects maintained by people who chose to share their work. These are some of them.
Our contribution
Billing primitives for everyone
Independent MIT-licensed projects. Core billing logic and React components that work on their own — use them without Commet, fork them, build on top of them.
billsdk
MITCore billing primitives
Subscriptions, invoicing, proration, and consumption models. Everything you need to build billing from scratch — no vendor lock-in.
billui
MITReact billing components
Checkout flows, pricing tables, and customer portal. Drop them into any React app — no Commet account required.
For maintainers
Maintain open source?
Use Commet free.
If you maintain an open source project and want to monetize a product around it — use Commet with zero platform fees. No strings attached.