Plugins

WordPress uses many more Plugins ,now what is plugins ,A plugin is a piece of software containing a group of functions that can be added to a website. it can extend functionality or add new features to your websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress.

They are around 45,183 plugins and many more with 1,307,889,746 total downloads

Popular plugins use in wordpress”

Google XML Sitemaps,W3 Total Cache,iThemes Security (formerly Better WP Security),Yoast SEO,Google Analytics ,Shortcodes Ultimate,Wordfence Security,Google Analyticator

Breadcrumb NavXT,Ninja Forms,WPtouch Mobile Plugin,Add Link to Facebook,TablePress,Advanced Custom Fields,Force Regenerate Thumbnails

WP Maintenance Mode,Contact Form 7,NextGEN Gallery,Fast Secure Contact Form

WP Super Cache,UpdraftPlus WordPress Backup Plugin,Google Analytics by Monster Insights

All in One SEO Pack,Jetpack by WordPress.com,The Events Calendar,WP Slimstat Analytics

AddToAny Share Buttons,BackUp WordPress,WooCommerce,Sociable,Meta Slider…

and many more plugins are available which you can  use based on your requirements

There is an example of plugins which we used in our site

plugins used with Avada Theme:

Contact form 7

Google xml sitemap

layerslider WP

Really simple Captcha

Revolution slider

skillbars

WP-mail-SMTP

Yoast SEO

Fusion Core