ADempiere

ADempiere is a business suite that combines ERP, CRM, manufacturing, supply chain, and point of sale in one system. It targets organizations that want a single application for finance, operations, and sales rather than separate tools stitched together.

The suite is built in Java and developed openly, with source you can clone and build yourself. Bug reports and contributions are handled through public GitHub issues, and the project ships tagged releases such as the 3.9.4 line.

ADempiere is run entirely by its community of technical specialists, functional specialists, implementors, and end users. There is no hosted edition, so you deploy and operate it on your own infrastructure.