A collection of some popular and free WordPress plugins you can use for creating and managing beautiful photo galleries, video galleries, slideshows and more inside your WordPress based website.
Fotobook
This plugin allows you to link your WordPress site to your Facebook account(s) for importing all of your photo albums from there to use in your website.
NextGEN Gallery
Most popular photo gallery plugin with tons of features and over 6 million downloads. It provides your with powerful features for uploading and managing galleries of your photos, provides you ability for batch upload, you can easily import meta data, add, delete, rearrange, sort images, edit thumbnails, group galleries into albums etc with this plugin. You also get two different front-end display styles which includes slideshows and thumbnail galleries and lightbox effect.
GRAND FlAGallery
Another popular plugin for creating and managing image galleries in WordPress. Its a Photo Gallery, Video Gallery, Music Album & Banner Rotator plugin that provides you comprehensive interface and powerful features for managing your media content.
WP Photo Album Plus
It allows you to easily manage and display your photo albums and slideshows in your WordPress site. It works both in single as well as in a network WordPress installations.
PhotoSmash Galleries
Using PhotoSmash Galleries plugin you can easily create photo galleries inside your blog posts and pages that your users can upload images to. It has incredibly flexible and simple models for designing custom photo gallery and form layouts, you can utilize your own custom database fields, html, and css, or simply use the standard.
Video Playlist And Gallery Plugin
Its full name is “Post video players, slideshow albums, photo galleries and music / podcast playlist” with this plugin you can easily post videos, photo galleries/flash slideshows, music and playlists in seconds to your WordPress site. It is hitting more downloads than GRAND FlAGallery.