Piwigo is a free and open-source[2] web-based photo gallery, originally written by Pierrick Le Gall.

[3] Piwigo (originally named PhpWebGallery) was written by Pierrick Le Gall as a personal project in 2001.

Inspired by the opensource web forum phpBB that he installed for his university website, he chose the GNU General Public License to distribute Piwigo and start a community around the project.

In 2005 an online extension manager made contributions easier to share.

As of 2013, there were 10 members in the Piwigo team, 100 translators, a website available in 12 languages and a thriving community.