Colibri WP is a drag-and-drop WordPress website builder.
PHP is a general-purpose scripting language used for web development.
Polylang is a WordPress plugin which allows you to create multilingual WordPress site.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.