VelocityJS

Accelerated JavaScript animation. http://VelocityJS.org

News
You can order the Velocity book on Amazon!

WhatsApp, Tumblr, Windows, Samsung, Uber, and thousands of other companies rely on Velocity. Visit Libscore.com to see which sites use Velocity on their homepage.

React Plugin
Announcement: https://fabric.io/blog/introducing-the-velocityreact-library
Repo: https://github.com/twitter-fabric/velocity-react
NPM: https://www.npmjs.com/package/velocity-react

Quickstart
Velocity (CDN): <script src="//cdn.jsdelivr.net/velocity/1.2.3/velocity.min.js"></script>
Velocity UI pack (CDN): <script src="//cdn.jsdelivr.net/velocity/1.2.3/velocity.ui.min.js"></script>
Package managers: npm install velocity-animate / bower install velocity

Questions or Problems?
Ask on StackOverflow (make sure you add the velocity.js and javascript tags).

Updates

• 1.2.0: Custom tweens. Custom easings. "Finish" command. See commit log for more.
• 1.0.0: File name changed to velocity.js. Read VelocityJS.org/#dependencies.
• 0.1.0: stop now stops animations immediately (instead of only clearing the remainder of the animation queue). No other backwards-incompatible changes were made.

Learn

• Motion design: smashingmagazine.com/2014/06/18/faster-ui-animations-with-velocity-js
• Animating without jQuery: smashingmagazine.com/2014/09/04/animating-without-jquery
• Performance comparisons: davidwalsh.name/css-js-animation
• Workflow: css-tricks.com/improving-ui-animation-workflow-velocity-js

Comparisons

• CSS transitions are meant for simple interface flourishes.
• jQuery's $.animate() is slow and poorly-equipped for motion design.
• Velocity is a fast, feature-rich standalone alternative to jQuery's $.animate().

from https://github.com/julianshapiro/velocity