ownCloud is a free and opensource file sync and share app which is self hosted.

Back4App is a parse server hosting platform for apps.

Kopano is an open-source groupware application suite originally based on Zarafa.

Openia CRM is an opensource CRM software.

Papaly is a simple social bookmarking tool to manage links.

Groove brings you all the music you love, every way you want it.

Madsonic is a web-based media library and media streamer with jukebox functionality.

Webix UI is a JavaScript Library for cross-platform app development with HTML5 JavaScript widgets.