Sourcerer PRO is the best Joomla plugin for placing arbitrary code in any arbitrary area of ​​your site. You can easily place arbitrary CSS styles, HTML, Javascript or PHP code in the content. You can insert code into categories, modules, materials, templates, and components. You can place arbitrary code using a regular visual editor. For insertion, special plug-in tags are used. However, the editor does not delete sections of code. The pro version has advanced security settings, a choice of method for connecting php files, simple syntax. 

Quiz Deluxe Expert v3.7.7 is an excellent Joomla extension designed to create attractive multimedia quizzes on the site. You can ask a large selection of types of questions with multiple choices, set styles and modes, insert audio and video questions. This version includes additional puzzle questions. Quizzes can be created for any purpose. Features: the quiz component integrates with VirtueMart, the ability to give certificates and receive fees for passing, conducting quizzes to evaluate your staff or visitors, creating short tests for certain products, the presence of feedback and other functions.

VMUikit v5.0.4 is a useful extension for easy integration of the Virtuemart 3 e-commerce component with any YOOthemes web studio templates (the template should use Warp7 or PRO platform). The component overrides the standard features and layouts of Virtuemart. Now you can easily create your own design for an online store. Features: support for adaptive design, support for schema.org, choice of options for the basket, single page order, Ajax Search, Offcanvas basket, UIkit 2 and UIkit 3. Custom elements 5.0.6 added to archive

Plotalot v6.05 - the useful Joomla the extension intended for display on pages of your website of beautiful and live diagrams. For creation of charts the plug-in uses all opportunities of Google Charts API. Features: A wide choice of different types of charts (it is possible to otbrazhat dot and line charts, vertical and horizontal histograms, bubble charts, pie charts, organizational charts, maps and treelike charts). There is a possibility of display of tables with partition on pages and sorting, support of the adaptive mode, dynamic up-dating of diagrams. As data sources local or external databases are used.

Layer Slideshow v2.0.2 - an excellent solution for the implementation of a professional slide show with support for multiple layers. The Joomla extension has already integrated 5 themes with the ability to connect to any layers. You can easily create layouts of any complexity without design knowledge. On each slide, you can impose different layers (background, text, image and text) with separate effects. Everything is done using the Drag'n drop interface. Features: width adjustment, the presence of a convenient button editor, display and navigation styles, support for third-party extensions is included, convenient setting and background selection, setting full or fixed width, using the built-in image manager and much more.

Easy Profile Pro v2.8.0 - one of the best and most popular Joomla extensions designed for advanced user profile management with the ability to add custom fields. The component greatly extends the user management features. Extension functionality: privacy settings for each field, the ability to add and configure users with their avatar (using a webcam), the ability to add custom fields (mail, flags, text box, drop-down lists, GoogleMaps, calendar), support for adding conditional fields, display users on the map, support for social networks and many other useful features.

Improved AJAX Login & Register is a popular and feature-rich Joomla extension that is designed to replace the standard registration and login to the site with a large number of advanced settings. The component supports password reset, user name reminder using AJAX technology. It is also possible to register in one click using your Google, Microsoft, Twitter and Facebook account. In the component, you can select one of the 20 pre-installed skins and one of the 4 module themes. With the Live Editor you can create your own registration forms.