WordPress is an open source content management solution based on PHP maintained by Automattic which is also being offered as hosted solution.

LogicalDOC is a free document management system that is designed to handle and share documents within an organization.

Voog is a mess-free platform that enables you to build awesome websites with a creative flow.

Awes.io is an opensource web ecosystem based on Nuxt/Vue and Laravel to develop MVPs and more.

Microsoft SharePoint is a browser-based collaboration and document management platform.

Process Street is a checklist software.