Wordpress is one of the most favorite blogging platforms and has more than 13million users and has been downloaded more than 5 million times. Success of WordPress would not be complete without its plugins that it offered as part of its exclusive service. In WordPress nitty there are more than 4,245 plugins, which has been downloaded for 22, 152,788 times.

Below are 18 most downloaded Wordpress plugins which are extensively used and each of those plugins are downloaded a minimum of 200, 000 times.

All in One SEO Pack – This Plugin exclusively used for optimizing Wordpress blog for Search Engines (Search Engine Optimization).

Google XML Sitemap Generator – This Plugin is featured to create Google sitemaps for a WordPress blog.

NextGEN Gallery – This Plugin is provided with Image Gallery feature with a Flash slideshow option.

WordPress.com Stats – This Plugin enables to have additional simple, concise stats for a respective WordPress login.

WP Super Cache – This Plugin produce cached pages for a blog to be kept at fast caching engine for WordPress.

Contact Form 7 – This plugin is for producing a contact form to be enabled on wordpress blog.

Wordpress Automatic upgrade – This plugin allows automatic updates to the Wordpress installation.

Sociable – This plugin automatically provides links for your posts, pages and RSS feed on social bookmarking sites.

Viper’s Video Quicktags – This Plugin lets XHTML valid posting of videos from media sites like YouTube, DailyMotion, Vimeo, and more on Word Press blog.

Simple Tags – This Tagging Plugin allow managing WP tags.

WP-DB-Backup – This Plugin on request provides backup of WordPress database.

Google Analytics for WordPress – This Plugin enables JavaScript code of Google Analytics to be added on your website.

Google Analyticator – This Plugin also allows Google Analytics tracking.

Add to Any: Share/Bookmark/Email Button – This very useful plugin helps your readers to share, save, bookmark, and email a blog posts and pages on more than 100 social media sites including Facebook, Twitter, Digg, Delicious.

WP-Polls – This Plugin helps in adding an AJAX poll system to a blog and allows organizing a contest on word press.

Sidebar Widgets – This Plugin adds “Sidebar Widgets” panel below presentation menu.

podPress – This plugin is for podcasters using WordPress.

WP-PageNavi – This plugin provides advanced level of page navigation for WordPress blog.