Lutim is a free and open source image hosting CMS.
Free • Open Source
What is Lutim?
Lutim is an image hosting CMS that allows you to self-host your images, see them, download them or share them on social networks. From version 0.5, the gif images can be displayed as animated gifs in Twitter, but you need a HTTPS server. (Twitter requires that. Lutim detects if you have a HTTPS server and displays an static image Twitter card if you don't.)