Piwigo is an advanced PHP photo gallery software which was previously known as PhpWebGallery (PWG) and is open source software.

Features of Piwigo:
- Easy photo uploader
- Organize photos in albums
- Easy content tagging
- Easy installer
- Plugins
- Themes
- Restrict access to photos
- Date-driven archive
- Multilingual
- Admin panel
- Stats
- Rate content
- Comments
- Automatic slideshow mode
- EXIF/IPTC metadata
- SEO friendly URLs
- Spam filters

Requirements:
- MySQL 5 or Higher
- PHP 5 or Higher

What's New in This Version:- Cancel URL rewriting .htaccess and create a dedicated plugin
- Smarter check of the current version and required upgrade
- SQL error in admin / history /search tab
- Single mode, zoom opens the original photo
- CSSmin 3.0.1 requires PHP 5.2.4
- Invalid option sampling-factor for old versions of ImageMagick
- Check compatibility for extensions is broken
- PHP warnings on glob() function watermarks + multi size
- Invalid XML on web service output with format xml
- set_time_limit() php warning in i.php

Installation:
- Download the full archive and unzip it.
- Transfer the archive content on your web server with any FTP client.
- Once all files are transfered, go to the web address with a web browser. Piwigo will detect nothing is installed yet and redirect to the installation page.
- Configure your MySQL database settings and the webmaster account to administer your gallery.
- You will be informed about success or failure of the installation process.
- Once installation finished, you can go into your gallery, log in with the webmaster account and access the administration panel.