Transformicons - Animated icons, symbols and buttons using SVG and CSS
Whimsical Wireframes - Lightning fast wireframing with real-time collaboration.
CSS Animation Cheat Sheet - Awesome CSS3 plugin for spiffy animations
Userflows - Automatically generate user journeys
Distorted Button Effects - Highly experimental distortion effects for buttons
Adobe XD - Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more.