Using the EFSEO plugin, it is easy to modify and add meta information such as title, description, keywords, generator and instructions for search engine crawlers on your Joomla! You can do this either through the front-end or back-end, no matter which component you use.

Joomla! Multisite Manager gives you the ability to run multiple websites on a single hosting account and share database data between different Joomla! sites. It also allows you to have a single sign-in and sign-out on all websites.

Image Effect CK is a tool that allows you to add stylish and interactive effects to images on your website. Controlling the effects is very simple: just assign a CSS class to the desired image. In addition, image captions are created automatically using the content of the title attribute.

Tabs & Accordions Pro v2.5.6 is a plugin designed to create content tabs and accordions in Joomla! Create content tabs and accordions anywhere in Joomla! You can easily create content tabs and accordions (sliders) inside articles, modules or even third-party components and template overrides.

JMP Delete My Account is an extension for Joomla! that enables website users to delete their own accounts.

Aimy Captcha-Less Form Guard 20.0 is a powerful Joomla security plugin designed to protect website forms from spam bots without using traditional CAPTCHA challenges. 

OSYouTube Pro 4.1.0 is a popular Joomla plugin that is designed to host videos from YouTube. To insert a video, you just need to copy the URL. You can customize autoplay, player theme, scroll bar and more. Plugin features: support for responsive design, customize controls, select the style of the scrollbar, insert videos into articles and modules, the ability to turn off full screen mode, customize the player theme, customize the width and height of the player, hide controls and much more.