digiKam - Professional Photo Management with the Power of Open Source
F-Stop Media Gallery - Image and video organizer.
ACDSee Photo Studio - ACDSee becomes ACDSee Photo Studio — ACDSee Photo Studio Standard 2018 continues the ACDSee legacy
A Photo Manager - Manage local photos on Android: gallery, geotag with photomap, tags, find, sort, view, copy...
Shotwell - Shotwell is an open source photo organizer designed for the GNOME desktop environment.
LeafPic - LeafPic is a fluid, material-designed alternative gallery.