Before Bitrix24, there was (now part of 1C-Bitrix ). This is a PHP CMS/framework. It is also proprietary but provides “source code available” licensing. Some legacy discussions refer to “Bitrix Open Source” because:
Unlike the Cloud version, you choose where your data lives. You can host it on your own private servers or with a preferred local provider, ensuring compliance with strict regional data laws. bitrix24 open source
In a world where SaaS vendors hold your data hostage and monthly subscriptions eat away at your margins, the promise of "Open Source" sounds like salvation. Enter Bitrix24. While competitors like Odoo or SuiteCRM wave the GPL flag proudly, Bitrix24 takes a more pragmatic, enterprise-friendly approach. Before Bitrix24, there was (now part of 1C-Bitrix )