Marlin - Marlin is a new GTK3-based file manager for Linux, pretty slick and fast.
Xibo - Digital Signage for Everyone!
OptiSigns - OptiSigns Digital Signage is a platform that helps users to make any screen a digital sign for information or advertisement.
Yodeck - Yodeck enables you to design and schedule your digital signage on Raspberry Pi easily from the web, using your computer, tablet or smartphone.
Concerto Digital Signage - Concerto Digital Signage is an open-source platform that allows users to create content for their digital platforms spread all over the places.
TelemetryTV - Powerful and Intuitive Cloud-Based Digital Signage Software That Lets You Easily Manage Content on Screens