WP Page Builder - A free, fast and intuitive WordPress page builder
Swiper - Swiper is the most modern free mobile touch slider with hardware accelerated transitions and amazing native behavior.
Elementor - Elementor is a front-end drag & drop page builder for WordPress.
Slider Revolution - Slider Revolution is more than just a WordPress slider. It helps beginner-and mid-level designers WOW their clients with pro-level visuals.
OnePager - One page theme builder for WordPress
WPMeteor - WordPress service marketplace.