Bounce.js is a free and easy to use online tool that helps people to create CSS3 animations easily, just copy and paste the exported CSS code into your page.
Click ‘add component’ to get started or you can select the preset animations such as Spin, Jelly, Back and Forth, Clock, Splat, Road Runner, Slinky, Smack, Swoosh, Fold and Unfold. Total 4 type of CSS3 animations you can apply, scale, translate, rotate and skew.
Thanks Joel Besada who made this useful online tool for free.
Source: Read more about Bounce.js