Crater is an open-source web and mobile application that provides freelancers and small businesses with a suite of tools for invoicing and expense tracking. Its mission is to offer a free, self-hostable alternative to paid invoicing software, enabling users to create professional invoices and estimates, track payments and expenses, and generate business reports. The platform offers both a free, self-hosted version and paid cloud-hosted plans for users who prefer a managed service.

Founded in

United States