Piwigo.org - Manage your photo collection with Piwigo. Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.
Lychee by Electerious - Lychee is an open-source, free software program for self-hosted photo management. It can be installed on the user's own server or website. The software permits the uploading and management of photos and also makes sharing photos very easy.
novaGallery.org - Beautiful php image gallery - easy to use, with modern responsive design, private mode, themes, languages
Chevereto - Chevereto is a powerful image and video hosting script that allows you to create your very own full featured image hosting website in just minutes.
PhotoStructure - PhotoStructure is a complete photo and video management application designed for the whole family.
MediaGoblin - MediaGoblin is a free software media publishing platform that anyone can run.