What is the main difference between OpenProject and Easy Redmine?

The most outstanding difference between these two PM tools is that Easy Redmine is a more comprehensive and extensible upgrade to the open-source Redmine project management software, while OpenProject is a separate open-source project management platform.

Easy Redmine is built on top of the Redmine codebase and provides a range of additional features, plugins, and enhancements that extend Redmine's functionality. To be more concrete, Easy Redmine offers a wider range of plugins and extensions, including resource management, agile methodologies, finances, CRM, helpdesk, and DevOps. OpenProject has a more limited set of built-in features. Also, Easy Redmine is available in both cloud-hosted and on-premises deployment options, while OpenProject is primarily an on-premises solution.

Easy Redmine is a more comprehensive and commercially-supported upgrade to Redmine, offering a wider range of features, plugins, and professional services, while OpenProject is a separate open-source project management platform with a more limited set of built-in capabilities.