Bootstrap is a free and open-source front-end framework for designing websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions.
jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML. It is free, open-source software using the permissive MIT License. Web analysis indicates that it is the most widely deployed JavaScript library by a large margin.
Nette Framework is an open-source framework for creating web applications in PHP 5 and 7. It supports AJAX, DRY, KISS, MVC and code reusability. Original author of the framework , but further development is now maintained by the Nette Foundation organization.