Animista is described as 'Create great looking CSS animations right in your browser' and is an website in the development category. There are more than 10 alternatives to Animista, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, Mac, Windows and Linux. The best alternative is Animate.css, which is both free and Open Source. Other great sites and apps similar to Animista are Hover.css, DynCSS, Magic Animations CSS3 and Bounce.js.
A collection of CSS3 powered hover effects to be applied to links, buttons, logos, SVG, featured images and so on. Easily apply to your own elements, modify or just use for inspiration. Available in CSS, Sass, and LESS.
Swiper is the most modern free mobile touch slider with hardware accelerated transitions and amazing native behavior. It is intended to be used in mobile websites, mobile web apps, and mobile native/hybrid apps.